well, with the effectiveness of services to defend the interests of the masses. Third, we should strive to do well. To achieve good practical results, the key is to know the law, to grasp the laws and using laws. Office of economic development, social progress, there are rules to follow. Only act according to the law, to overcome blindness and strengthening initiative, creative. Working in the Office, we should be good at analyzing the essence of things, to find regular thing, change from passive to active, to seek one. Investee 2. establishment of evaluation system. Evaluation system is essentially an incentive mechanism, the evaluation was objective and fair, reasonable, and can stimulate a person's energy, mobilizing people's enthusiasm or be misleading, dampened the enthusiasm of people. At present, the concept of people-oriented people, but to establish and perfect evaluation system is still lagging behind. Work in this area should be seriously caught up. \ee emphasis on\of. Is a focus on standards and scientific. A fundamental point of the evaluation criteria, is to keep contact, development, comprehensive eye evaluation of cadres. Office work, both \nd \both subjective efforts, take another look at the objective condition; both \nother look at the \on participating the breadth of the subject. Evaluation of cadres must give full play to democracy, cadres and the masses handing over evaluation. Office work services leadership and service base, serve the people, then nominated the main object will contain a variety of services, so that assessment was accurate and to avoid one-sidedness. Third, pay attention to the seriousness of the conclusion. The use of evaluation findings is mainly embodied in his direction. Permitted to choose one, it would be tantamount to establishing a banner. Evaluation can't take care of the balance, otherwise it would undermine the offset the positive significance of evaluation. Office of the party committees at all levels should take the findings as on the cadres ' bonus-penalty, an important basis for future movements, incentive and restraint effect of making evaluations. 3. Prevention of understanding \d development, concrete is dialectical,. In practice in the process, to prevent one-sided and still look, from actual people. One is to use dialectical point of view to understand. Humanist is the core of the scientific Outlook on development, remains the development of the scientific Outlook on development emphasizes, is still taking economic construction as the Center. Any departure from the development of thought and action, is a misinterpretation and misunderstanding of people-oriented. Adhere to people-oriented both to overcome one-sidedness of the old, but also to prevent one-sidedness, not accelerating the development of people and the opposition. Must be very clear, people oriented and speeding up development is not opposed, but consistent, we should never be第一届广东省大学生化学实验竞
赛
84、某有机物沸点是100 ?C,蒸馏时应用( )。
A、球形冷凝管 B、空气冷凝管 C、直形冷凝管 D、导气管 A、淀粉-碘化钾试纸变色 B、刚果红试纸变色 C、红色石蕊试纸变色 D、pH试纸变色
86、萃取时,可在水溶液中先加入一定量的电解质(如氯化钠),以降低有机物在水中的溶解度,从而
提高萃取效果,这种现象叫做( )。
A、络合效应 B、盐析效应 C、溶解效应 D、沉淀效应 87、下列试剂中,( )可用于鉴别乙醇和丁醇。
A、Fehling试剂 B、Lucas试剂 C、I2/NaOH溶液 D、Tollen试剂 88、下列化合物中,与Lucas试剂反应最快的是( )。
A、正丁醇 B、仲丁醇 C、苄醇 D、环己醇
89、生物碱是一类重要的天然产物,用柱层析法对生物碱进行分离纯化,以下试剂中,用( )处
理层析柱后可以得到很好的分离效果。
A、稀NaOH溶液 B、稀HCl溶液 C、三乙胺 D、乙醇
90、粗产品1-溴丁烷经水洗后油层呈红棕色,说明含有游离的溴,可用少量的( )洗涤以除去之。
A、亚硫酸氢钠水溶液 B、饱和氯化钠水溶液 C、水 D、活性碳
85、检验重氮化反应终点,应采用( )方法。
四、填空题(共31分)
1、固液分离方法一般可分为倾析法、 和 3种。
2、在“粗盐提纯”实验中,溶解粗食盐时加水量的根据是 ,加水过多对该实验的影响是 。 3、利用pH计测定系列醋酸溶液的pH时,最好按照 顺序测量,其原因是 。 4、(2分)试分析下列效应对沉淀溶解度的影响(填增大、减小、无影响)。
共同离子效应 ;盐效应 ;酸效应 ;络合效应 沉淀的溶解度。
5、(1分)碘量法的主要误差来源是 、 。
6、(2分)在沉淀滴定法中,莫尔法使用的指示剂是 。佛尔哈德法使用的指示剂是 ,并在测定Cl-时需要加入 以防止沉淀的转化作用;如果不加,则测定Cl- 的结果 (填偏高,偏低,或无影响)。 7、(4分)请选手将答案填入下表的空格中。
被测定组分 标准溶液 指示剂
eople-oriented in the name of reducing our enthusiasm. Premier Wen Jiabao's Government work report this year, identified as 7% growth, 2.1% lower than last year's 9.1%, but in 8 work remains to accelerate development in the first place ... Work standards. Second is to use the scale of development to understand. Society is evolving, human needs are also changing. Practice of humanism is a long-term process and cannot be achieved overnight. To treat people if you stand still and rigid dogma, it is possible to return to this, see things but not people's old ways. Therefore, we have to follow the development of the times, and continue debugging the humanist perspective, innovative people-oriented way. Under the new historical conditions, we are requested by the times, set up a brand new concept, a high starting point, high standard of armed people, shaping, exercise, people, constantly taking the new connotation of the times. erms of Office, is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation, actively adapt to the demand of the masses more and more situations, eager to learn, enhance accumulation, efforts, honed the ability to overcome a good service, panic. Third is to use realistic understanding. Adhere to people-oriented must be based on reality, not divorced from reality. Desk no water cups here in Hong Kong, staff need to drink some water to the drinking fountain on a floor, the glass used is a one-time non-cone type. Drink this cup can only hold, cannot be put down. This is not only to save on glass materials, more important is to force you to get drinking water, go back to your seat business. Our emphasis on people-oriented, does not imply you can indulge the desires, the comfortable, the pursuit of enjoyment. Office of the party committees at all levels of our comrades, must continue to maintain the style of plain living and hard struggle, to stand up to the tests of temptations, exciting \sposition\spirit of selfless dedication and provide services. Investee 4. clearly defined responsibilities. Putting people first is a common vision of development, everyone is a liability. People-oriented, above and below with the responsibility for coordinating system must be established and hold everyone accountable. First, we must strengthen the leadership. \ce, its governance, its level, bear the responsibility of the Division.\s the minimum requirement for leaders, is a measure of the basic criteria for whether a leading cadre is competent. Leaders need to \official term for the benefit of\consciously assume responsibility for implementing people-oriented. Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented, to manage their people, %ug in own responsibility\ducation of leading cadres, cadres and cadres work, efforts to revitalize the Office of human resources, Office work is full of vigor and vitalityNH3?H2O H2O2 CuSO4中Cu 自来水硬度 第11页 共15页
well, with the effectiveness of services to defend the interests of the masses. Third, we should strive to do well. To achiev good practical results, the key is to know the law, to grasp the laws and using laws. Office of economic development, social progress, there are rules to follow. Only act according to the law, to overcome blindness and strengthening initiative, creative. Working in the Office, we should be good at analyzing the essence of things, to find regular thing, change from passive to active, to seek one. Investee 2. establishment of evaluation system. Evaluation system is essentially an incentive mechanism, the evaluation was objective and fair, reasonable, and can stimulate a person's energy, mobilizing people's enthusiasm or be misleading, dampened the enthusiasm of people. At present, the concept of people-oriented people, but to establish and perfect evaluation system is still lagging behind. Work in this area should be seriously caught up. \ emphasis on\o take advantage of. Is a focus on standards and scientific. A fundamental point of the evaluation criteria, is to keep contact, developmentcomprehensive eye evaluation of cadres. Office work, both \ntial performance\h subjective efforts, take another look at the objective condition; both \h, take another look at the \d, focus on participating the breadth of the subject. Evaluation of cadres must give full play to democracy, cadres and the masses handing over evaluation. Office work services leadership and service base, serve the people, then nominated the main object will contain a variety of services, so that assessment was accurate and to avoid one-sidedness. Third, pay attention to the seriousness of the conclusion. The use of evaluation findings is mainly embodied in his direction. Permitted to choose one, it would be tantamount to establishing a banner. Evaluation can't take care of the balance, otherwise it would undermine the offset the positive significance of evaluation. Office of the party committees at all levels should take the findings as on the cadres ' bonus-penalty, an important basis for future movements, incentive and restraint effect of making evaluations. 3. Prevention ofunderstanding \d development, concrete is dialectical,. In practice in the process, to prevent one-sided and still look, from actual people. One is to use dialectical point of view to understand. Humanist is the core of the scientific Outlook on development, remains the development of the scientific Outlook on development emphasizes, is still taking economic construction as the Center. Any departure from the development of thought and action, is a misinterpretation and misunderstanding of people-oriented. Adhere to people-oriented both to overcome one-sidedness of the old, but also to prevent one-sidedness, not accelerating the development of people and the opposition. Must be very clear, people oriented and speeding up development is not opposed, but consistent, we should never be8、(1分)以HCl为滴定剂测定样品中K2CO3含量,若其中含有少量Na2CO3,结果 ;若用含有少量K2CO3的Na2CO3为基准物质标定,浓度将 。
9、(1分)铬黑T(EBT)是一种有机弱酸,其pKa1=6.3、pKa2=11.6,络合物Mg-EBT的logKMg-EBT=7.0,则在pH=10.0时,logK’Mg-EBT的值为 。
10、(2分)已知某温度下??Fe3?/Fe2?= 0.68 V,??Ce4?/Ce3?= 1.44 V,用Ce4+标准溶液滴定Fe2+,若[Ce4+]=1.00×10-5 mol?L?1,[Ce3+]=0.100 mol?L?1,[Fe3+]=0.100 mol?L?1,则[Fe2+]= 。 11、(2分)H2A的pKa1=2.0,pKa2=5.0,则[H2A]=[A2-]时,溶液pH为 ,此时主要存在形式是 。
12、(2分)以下为某同学搭建的乙醚回收装置,其中至少有4处错误,请指出。
错误一: 。 错误二: 。 错误三: 。 错误四: 。
13、(2分)现有四种化合物,分别为:乙醛、苯甲醛、丙酮、甲酸。能与2,4-二硝基苯肼作用的是 ; 能与饱和亚硫酸氢钠反应的是 ; 能与银氨溶液反应的是 ; 能发生碘仿反应的是 。
14、(1.5分)现有固体化合物A和B,若要判断两者是否为同一物质的方法有(至少要列出3种方法) :
(1) ; (2) ; (3) 。
15、(1.5分)在己二酸的制备实验中,要先把浓硝酸溶液加热到60 ?C再滴加环己醇,其目的是 ,反应过程中产生的 使得即使体系温度控制在80~90 ?C,仍能微沸。
eople-oriented in the name of reducing our enthusiasm. Premier Wen Jiabao's Government work report this year, identified as 7% growth, 2.1% lower than last year's 9.1%, but in 8 work remains to accelerate development in the first place ... Work standards. Second is to use the scale of development to understand. Society is evolving, human needs are also changing. Practice of humanism is a long-term process and cannot be achieved overnight. To treat people if you stand still and rigid dogma, it is possible to return to this, see things but not people's old ways. Therefore, we have to follow the development of the times, and continue debugging the humanist perspective, innovative people-oriented way. Under the new historical conditions, we are requested by the times, set up a brand new concept, a high starting point, high standard of armed people, shaping, exercise, people, constantly taking the new connotation of the times. erms of Office, is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation, actively adapt to the demand
of the masses more and more situations, eager to learn, enhance accumulation, efforts, honed the ability to overcome a good service, panic. Third is to use realistic understanding. Adhere to people-oriented must be based on reality, not divorced from reality. Desk no water cups here in Hong Kong, staff need to drink some water to the drinking fountain on a floor, the glass used is a one-time non-cone type. Drink this cup can only hold, cannot be put down. This is not only to save on glass materials, more important is to force you to get drinking water, go back to your seat business. Our emphasis on people-oriented, does not imply you can indulge the desires, the comfortable, the pursuit of enjoyment. Office of the party committees at all levels of our comrades, must continue to maintain the style of plain living and hard struggle, to stand up to the tests of temptations, exciting \sposition\spirit of selfless dedication and provide services. Investee 4. clearly defined responsibilities. Putting people first is a common vision of development, everyone is a liability. People-oriented, above and below with the responsibility for coordinating system must be established and hold everyone accountable. First, we must strengthen the leadership. \ce, its governance, its level, bear the responsibility of the Division.\s the minimum requirement for leaders, is a measure of the basic criteria for whether a leading cadre is competent. Leaders need to \official term for the benefit of\consciously assume responsibility for implementing people-oriented. Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented, to manage their people, %ug in own responsibility\ducation of leading cadres, cadres and cadres work, efforts to revitalize the Office of human resources, Office work is full of vigor and vitality12
well, with the effectiveness of services to defend the interests of the masses. Third, we should strive to do well. To achieve good practical results, the key is to know the law, to grasp the laws and using laws. Office of economic development, social progress, there are rules to follow. Only act according to the law, to overcome blindness and strengthening initiative, creative. Working in the Office, we should be good at analyzing the essence of things, to find regular thing, change from passive to active, to seek one. Investee 2. establishment of evaluation system. Evaluation system is essentially an incentive mechanism, the evaluation was objective and fair, reasonable, and can stimulate a person's energy, mobilizing people's enthusiasm or be misleading, dampened the enthusiasm of people. At present, the concept of people-oriented people, but to establish and perfect evaluation system is still lagging behind. Work in this area should be seriously caught up. \ee emphasis on\of. Is a focus on standards and scientific. A fundamental point of the evaluation criteria, is to keep contact, development, comprehensive eye evaluation of cadres. Office work, both \nd \both subjective efforts, take another look at the objective condition; both \nother look at the \on participating the breadth of the subject. Evaluation of cadres must give full play to democracy, cadres and the masses handing over evaluation. Office work services leadership and service base, serve the people, then nominated the main object will contain a variety of services, so that assessment was accurate and to avoid one-sidedness. Third, pay attention to the seriousness of the conclusion. The use of evaluation findings is mainly embodied in his direction. Permitted to choose one, it would be tantamount to establishing a banner. Evaluation can't take care of the balance, otherwise it would undermine the offset the positive significance of evaluation. Office of the party committees at all levels should take the findings as on the cadres ' bonus-penalty, an important basis for future movements, incentive and restraint effect of making evaluations. 3. Prevention of understanding \d development, concrete is dialectical,. In practice in the process, to prevent one-sided and still look, from actual people. One is to use dialectical point of view to understand. Humanist is the core of the scientific Outlook on development, remains the development of the scientific Outlook on development emphasizes, is still taking economic construction as the Center. Any departure from the development of thought and action, is a misinterpretation and misunderstanding of people-oriented. Adhere to people-oriented both to overcome one-sidedness of the old, but also to prevent one-sidedness, not accelerating the development of people and the opposition. Must be very clear, people oriented and speeding up development is not opposed, but consistent, we should never be第一届广东省大学生化学实验竞
赛
16、(1分)在三苯甲醇的制备实验中,加入溴苯和无水乙醚的混合液的速度不能太快,否则会导
致 。反应所生成的副产物可通过 除去。
17、(2分)按色谱分离原理,常用的柱色谱可分为 和 两种。
在液相色谱中,常用作固定相又可用作键合相基体的物质是 。在液相色谱中,提高色谱柱柱效的最有效途径是 。
五、简答题(9分)
1、硫酸亚铁铵又叫摩尔盐,是工业生产和实验室常用的还原试剂,实验室可以用工业铁屑、硫酸和硫酸铵等为原料来制备。请回答以下问题:
(1)摩尔盐为什么优于其它亚铁试剂?形成这类盐的阳离子应具备什么条件? (2)蒸发浓缩制备摩尔盐过程中,溶液为什么有时会变黄?如何预防?应如何处理? 2、利用分光光度法测定磺基水杨酸铜配合物的组成和稳定常数的实验中,请回答以下问题: (1)分光光度法测定溶液中配合物的组成和稳定常数应满足什么条件? (2)什么是“等摩尔系列法”?
六、实验设计题(15分)
eople-oriented in the name of reducing our enthusiasm. Premier Wen Jiabao's Government work report this year, identified as 7% growth, 2.1% lower than last year's 9.1%, but in 8 work remains to accelerate development in the first place ... Work standards. Second is to use the scale of development to understand. Society is evolving, human needs are also changing. Practice of humanism is a long-term process and cannot be achieved overnight. To treat people if you stand still and rigid dogma, it is possible to return to this, see things but not people's old ways. Therefore, we have to follow the development of the times, and continue debugging the humanist perspective, innovative people-oriented way. Under the new historical conditions, we are requested by the times, set up a brand new concept, a high starting point, high standard of armed people, shaping, exercise, people, constantly taking the new connotation of the times. erms of Office, is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation, actively adapt to the demand of the masses more and more situations, eager to learn, enhance accumulation, efforts, honed the ability to overcome a good service, panic. Third is to use realistic understanding. Adhere to people-oriented must be based on reality, not divorced from reality. Desk no water cups here in Hong Kong, staff need to drink some water to the drinking fountain on a floor, the glass used is a one-time non-cone type. Drink this cup can only hold, cannot be put down. This is not only to save on glass materials, more important is to force you to get drinking water, go back to your seat business. Our emphasis on people-oriented, does not imply you can indulge the desires, the comfortable, the pursuit of enjoyment. Office of the party committees at all levels of our comrades, must continue to maintain the style of plain living and hard struggle, to stand up to the tests of temptations, exciting \sposition\spirit of selfless dedication and provide services. Investee 4. clearly defined responsibilities. Putting people first is a common vision of development, everyone is a liability. People-oriented, above and below with the responsibility for coordinating system must be established and hold everyone accountable. First, we must strengthen the leadership. \ce, its governance, its level, bear the responsibility of the Division.\s the minimum requirement for leaders, is a measure of the basic criteria for whether a leading cadre is competent. Leaders need to \official term for the benefit of\consciously assume responsibility for implementing people-oriented. Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented, to manage their people, %ug in own responsibility\ducation of leading cadres, cadres and cadres work, efforts to revitalize the Office of human resources, Office work is full of vigor and vitality第13页 共15页
well, with the effectiveness of services to defend the interests of the masses. Third, we should strive to do well. To achiev good practical results, the key is to know the law, to grasp the laws and using laws. Office of economic development, social progress, there are rules to follow. Only act according to the law, to overcome blindness and strengthening initiative, creative. Working in the Office, we should be good at analyzing the essence of things, to find regular thing, change from passive to active, to seek one. Investee 2. establishment of evaluation system. Evaluation system is essentially an incentive mechanism, the evaluation was objective and fair, reasonable, and can stimulate a person's energy, mobilizing people's enthusiasm or be misleading, dampened the enthusiasm of people. At present, the concept of people-oriented people, but to establish and perfect evaluation system is still lagging behind. Work in this area should be seriously caught up. \ emphasis on\o take advantage of. Is a focus on standards and scientific. A fundamental point of the evaluation criteria, is to keep contact, developmentcomprehensive eye evaluation of cadres. Office work, both \ntial performance\h subjective efforts, take another look at the objective condition; both \h, take another look at the \d, focus on participating the breadth of the subject. Evaluation of cadres must give full play to democracy, cadres and the masses handing over evaluation. Office work services leadership and service base, serve the people, then nominated the main object will contain a variety of services, so that assessment was accurate and to avoid one-sidedness. Third, pay attention to the seriousness of the conclusion. The use of evaluation findings is mainly embodied in his direction. Permitted to choose one, it would be tantamount to establishing a banner. Evaluation can't take care of the balance, otherwise it would undermine the offset the positive significance of evaluation. Office of the party committees at all levels should take the findings as on the cadres ' bonus-penalty, an important basis for future movements, incentive and restraint effect of making evaluations. 3. Prevention ofunderstanding \d development, concrete is dialectical,. In practice in the process, to prevent one-sided and still look, from actual people. One is to use dialectical point of view to understand. Humanist is the core of the scientific Outlook on development, remains the development of the scientific Outlook on development emphasizes, is still taking economic construction as the Center. Any departure from the development of thought and action, is a misinterpretation and misunderstanding of people-oriented. Adhere to people-oriented both to overcome one-sidedness of the old, but also to prevent one-sidedness, not accelerating the development of people and the opposition. Must be very clear, people oriented and speeding up development is not opposed, but consistent, we should never be蚊虫是人类的大敌,它能够传播许多疾病,如疟疾、肝炎、痢疾等。研究发现,蚊虫是通过其触须上的二氧化碳感受器感知哺乳动物排放在空气中的二氧化碳浓度而发动进攻的。N,N-二乙基间甲苯甲酰胺(N,N-Diethyl-m-Toluamide,简称DEET)俗称避蚊胺,对蚊虫具有很强的驱避作用,它能阻塞蚊虫的二氧化碳感受器,从而干扰了蚊虫对寄主的定位。DEET对人畜无毒,使用安全,应用十分广泛。DEET的合成可以用间甲苯甲酸与亚硫酰氯作用产生间甲苯甲酰氯,再与二乙胺反应即得到N,N-二乙基间甲苯甲酰胺。
本实验各种试剂和原料的物理常数如下: 名称 间甲苯甲酸 分子量/g·mol-1 136.15 密度/g·cm-3 1.054 熔点/?C 113 沸点/?C 263 性状 亮黄色鳞状固体,溶于水,易溶于醇、醚。 淡黄色至红色、发烟液体,亚硫酰氯 118.97 1.631 ?105 79 有强烈刺激气味。可混溶于苯、氯仿、四氯化碳等有机溶剂。遇水水解,加热分解。 间甲苯甲酰氯 154.60 1.173 ?23 86.5 (5 mmHg) 无色液体;有氨样特臭;强二乙胺 73.14 0.707 ?38.9 55 碱性;具腐蚀性;易挥发、易燃。与水或乙醇能任意混合。 无色透明液体。有特殊刺激气味。带甜味。极易挥发,乙醚 74.12 0.713 ?116.3 34.6 易燃。溶于低碳醇、苯、氯仿、石油醚和油类,微溶于水。 N,N-二乙基间甲苯甲酰胺
1、(3分)请写出本实验的反应方程式。
eople-oriented in the name of reducing our enthusiasm. Premier Wen Jiabao's Government work report this year, identified as 7% growth, 2.1% lower than last year's 9.1%, but in 8 work remains to accelerate development in the first place ... Work standards. Second is to use the scale of development to understand. Society is evolving, human needs are also changing. Practice of humanism is a long-term process and cannot be achieved overnight. To treat people if you stand still and rigid dogma, it is possible to return to this, see things but not people's old ways. Therefore, we have to follow the development of the times, and continue debugging the humanist perspective, innovative people-oriented way. Under the new historical conditions, we are requested by the times, set up a brand new concept, a high starting point, high standard of armed people, shaping, exercise, people, constantly taking the new connotation of the times. erms of Office, is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation, actively adapt to the demand 191.27 0.996 160(2.53 与乙醇、乙醚、苯、丙二醇、kPa) 棉籽油混溶。 淡黄色液体。不溶于水,可
of the masses more and more situations, eager to learn, enhance accumulation, efforts, honed the ability to overcome a good service, panic. Third is to use realistic understanding. Adhere to people-oriented must be based on reality, not divorced from reality. Desk no water cups here in Hong Kong, staff need to drink some water to the drinking fountain on a floor, the glass used is a one-time non-cone type. Drink this cup can only hold, cannot be put down. This is not only to save on glass materials, more important is to force you to get drinking water, go back to your seat business. Our emphasis on people-oriented, does not imply you can indulge the desires, the comfortable, the pursuit of enjoyment. Office of the party committees at all levels of our comrades, must continue to maintain the style of plain living and hard struggle, to stand up to the tests of temptations, exciting \sposition\spirit of selfless dedication and provide services. Investee 4. clearly defined responsibilities. Putting people first is a common vision of development, everyone is a liability. People-oriented, above and below with the responsibility for coordinating system must be established and hold everyone accountable. First, we must strengthen the leadership. \ce, its governance, its level, bear the responsibility of the Division.\s the minimum requirement for leaders, is a measure of the basic criteria for whether a leading cadre is competent. Leaders need to \official term for the benefit of\consciously assume responsibility for implementing people-oriented. Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented, to manage their people, %ug in own responsibility\ducation of leading cadres, cadres and cadres work, efforts to revitalize the Office of human resources, Office work is full of vigor and vitality14
well, with the effectiveness of services to defend the interests of the masses. Third, we should strive to do well. To achieve good practical results, the key is to know the law, to grasp the laws and using laws. Office of economic development, social progress, there are rules to follow. Only act according to the law, to overcome blindness and strengthening initiative, creative. Working in the Office, we should be good at analyzing the essence of things, to find regular thing, change from passive to active, to seek one. Investee 2. establishment of evaluation system. Evaluation system is essentially an incentive mechanism, the evaluation was objective and fair, reasonable, and can stimulate a person's energy, mobilizing people's enthusiasm or be misleading, dampened the enthusiasm of people. At present, the concept of people-oriented people, but to establish and perfect evaluation system is still lagging behind. Work in this area should be seriously caught up. \ee emphasis on\of. Is a focus on standards and scientific. A fundamental point of the evaluation criteria, is to keep contact, development, comprehensive eye evaluation of cadres. Office work, both \nd \both subjective efforts, take another look at the objective condition; both \nother look at the \on participating the breadth of the subject. Evaluation of cadres must give full play to democracy, cadres and the masses handing over evaluation. Office work services leadership and service base, serve the people, then nominated the main object will contain a variety of services, so that assessment was accurate and to avoid one-sidedness. Third, pay attention to the seriousness of the conclusion. The use of evaluation findings is mainly embodied in his direction. Permitted to choose one, it would be tantamount to establishing a banner. Evaluation can't take care of the balance, otherwise it would undermine the offset the positive significance of evaluation. Office of the party committees at all levels should take the findings as on the cadres ' bonus-penalty, an important basis for future movements, incentive and restraint effect of making evaluations. 3. Prevention of understanding \d development, concrete is dialectical,. In practice in the process, to prevent one-sided and still look, from actual people. One is to use dialectical point of view to understand. Humanist is the core of the scientific Outlook on development, remains the development of the scientific Outlook on development emphasizes, is still taking economic construction as the Center. Any departure from the development of thought and action, is a misinterpretation and misunderstanding of people-oriented. Adhere to people-oriented both to overcome one-sidedness of the old, but also to prevent one-sidedness, not accelerating the development of people and the opposition. Must be very clear, people oriented and speeding up development is not opposed, but consistent, we should never be第一届广东省大学生化学实验竞
赛
2、(4分)请画出反应装置图。
3、(3分)最后的反应混合液中,除了产物N,N-二乙基间甲苯甲酰胺外,还有少量未反应的原料间甲苯甲酸和二乙胺,请简述产物的纯化方法。
4、(2分)将二乙胺的乙醚溶液滴加入反应瓶中时,有大量白色絮状物质生产,此时反生了什么反应?
eople-oriented in the name of reducing our enthusiasm. Premier Wen Jiabao's Government work report this year, identified as 7% growth, 2.1% lower than last year's 9.1%, but in 8 work remains to accelerate development in the first place ... Work standards. Second is to use the scale of development to understand. Society is evolving, human needs are also changing. Practice of humanism is a long-term process and cannot be achieved overnight. To treat people if you stand still and rigid dogma, it is possible to return to this, see things but not people's old ways. Therefore, we have to follow the development of the times, and continue debugging the humanist perspective, innovative people-oriented way. Under the new historical conditions, we are requested by the times, set up a brand new concept, a high starting point, high standard of armed people, shaping, exercise, people, constantly taking the new connotation of the times. erms of Office, is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation, actively adapt to the demand of the masses more and more situations, eager to learn, enhance accumulation, efforts, honed the ability to overcome a good service, panic. Third is to use realistic understanding. Adhere to people-oriented must be based on reality, not divorced from reality. Desk no water cups here in Hong Kong, staff need to drink some water to the drinking fountain on a floor, the glass used is a one-time non-cone type. Drink this cup can only hold, cannot be put down. This is not only to save on glass materials, more important is to force you to get drinking water, go back to your seat business. Our emphasis on people-oriented, does not imply you can indulge the desires, the comfortable, the pursuit of enjoyment. Office of the party committees at all levels of our comrades, must continue to maintain the style of plain living and hard struggle, to stand up to the tests of temptations, exciting \sposition\spirit of selfless dedication and provide services. Investee 4. clearly defined responsibilities. Putting people first is a common vision of development, everyone is a liability. People-oriented, above and below with the responsibility for coordinating system must be established and hold everyone accountable. First, we must strengthen the leadership. \ce, its governance, its level, bear the responsibility of the Division.\s the minimum requirement for leaders, is a measure of the basic criteria for whether a leading cadre is competent. Leaders need to \official term for the benefit of\consciously assume responsibility for implementing people-oriented. Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented, to manage their people, %ug in own responsibility\ducation of leading cadres, cadres and cadres work, efforts to revitalize the Office of human resources, Office work is full of vigor and vitality第15页 共15页
well, with the effectiveness of services to defend the interests of the masses. Third, we should strive to do well. To achiev good practical results, the key is to know the law, to grasp the laws and using laws. Office of economic development, social progress, there are rules to follow. Only act according to the law, to overcome blindness and strengthening initiative, creative. Working in the Office, we should be good at analyzing the essence of things, to find regular thing, change from passive to active, to seek one. Investee 2. establishment of evaluation system. Evaluation system is essentially an incentive mechanism, the evaluation was objective and fair, reasonable, and can stimulate a person's energy, mobilizing people's enthusiasm or be misleading, dampened the enthusiasm of people. At present, the concept of people-oriented people, but to establish and perfect evaluation system is still lagging behind. Work in this area should be seriously caught up. \ emphasis on\o take advantage of. Is a focus on standards and scientific. A fundamental point of the evaluation criteria, is to keep contact, developmentcomprehensive eye evaluation of cadres. Office work, both \ntial performance\h subjective efforts, take another look at the objective condition; both \h, take another look at the \d, focus on participating the breadth of the subject. Evaluation of cadres must give full play to democracy, cadres and the masses handing over evaluation. Office work services leadership and service base, serve the people, then nominated the main object will contain a variety of services, so that assessment was accurate and to avoid one-sidedness. Third, pay attention to the seriousness of the conclusion. The use of evaluation findings is mainly embodied in his direction. Permitted to choose one, it would be tantamount to establishing a banner. Evaluation can't take care of the balance, otherwise it would undermine the offset the positive significance of evaluation. Office of the party committees at all levels should take the findings as on the cadres ' bonus-penalty, an important basis for future movements, incentive and restraint effect of making evaluations. 3. Prevention ofunderstanding \d development, concrete is dialectical,. In practice in the process, to prevent one-sided and still look, from actual people. One is to use dialectical point of view to understand. Humanist is the core of the scientific Outlook on development, remains the development of the scientific Outlook on development emphasizes, is still taking economic construction as the Center. Any departure from the development of thought and action, is a misinterpretation and misunderstanding of people-oriented. Adhere to people-oriented both to overcome one-sidedness of the old, but also to prevent one-sidedness, not accelerating the development of people and the opposition. Must be very clear, people oriented and speeding up development is not opposed, but consistent, we should never be
5、(3分)请问在实验室条件下,直接将间甲苯甲酸和二乙胺加热反应,能得到产物N,N-二乙基间甲苯甲酰胺吗?为什么?
eople-oriented in the name of reducing our enthusiasm. Premier Wen Jiabao's Government work report this year, identified as 7% growth, 2.1% lower than last year's 9.1%, but in 8 work remains to accelerate development in the first place ... Work standards. Second is to use the scale of development to understand. Society is evolving, human needs are also changing. Practice of humanism is a long-term process and cannot be achieved overnight. To treat people if you stand still and rigid dogma, it is possible to return to this, see things but not people's old ways. Therefore, we have to follow the development of the times, and continue debugging the humanist perspective, innovative people-oriented way. Under the new historical conditions, we are requested by the times, set up a brand new concept, a
of the masses more and more situations, eager to learn, enhance accumulation, efforts, honed the ability to overcome a good service, panic. Third is to use realistic understanding. Adhere to people-oriented must be based on reality, not divorced from reality. Desk no water cups here in Hong Kong, staff need to drink some water to the drinking fountain on a floor, the glass used is a one-time non-cone type. Drink this cup can only hold, cannot be put down. This is not only to save on glass materials, more important is to force you to get drinking water, go back to your seat business. Our emphasis on people-oriented, does not imply you can indulge the desires, the comfortable, the pursuit of enjoyment. Office of the party committees at all levels of our comrades, must continue to maintain the style of plaibelow with the responsibility for coordinating system must be established and hold everyone accountable. First, we must strengthen the leadership. \ce, its governance, its level, bear the responsibility of the Division.\s the minimum requirement for leaders, is a measure of the basic criteria for whether a leading cadre is competent. Leaders need to \official term for the benefit of\consciously assume responsibility for implementing people-oriented. Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented, to manage their people, %ug in own responsibility\ducation of leading cadres, cadres and cadres work, efforts to revitalize the Office of human resources, Office work is full of vigor and vitalitypoint, high standard of armed people, shaping, exercise, people, constantly taking the new connotation of the times. erms of Office, is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation, actively adapt to the demand nd hard struggle, to stand up to the tests of temptations, exciting \sposition\spirit of selfless dedication and provide services. Investee 4. clearly defined responsibilities. Putting people first is a common vision of development, everyone is a liability. People-oriented, above and 16
high starting n living a