电导法测定乙酸乙酯皂化反应速率常数.docx

电导法测定乙酸乙酯皂化反应速率常数摘要: 为了体会实验当中反应体系非理想化,以及提高数据处理能力。将电导法测定乙酸乙酯皂化反应反应速率常数的实验中乙酸乙酯和氢氧化钠的浓度改为不相等。在 ℃ ℃下分别测得不同大小关系的皂化反应电导率。经过数据处理之后,温度从 ℃升到 ℃时,反应速率常数从 (mol-1*L*min-1 )升到 (mol-1*L*min-1 ),乙酸乙酯浓度增大使得反应速率常数增到 (mol-1*L*min-1 ),反应的活化能为 此次试验数据处理比较复杂,实验数据测定比较耗时,但得到了充分的锻炼。关键词:皂化反应活化能反应体系非理想化 Abstract Inorder toappreciate the experimental reaction system among non-ideal, and improve data processing capabilities. The conductivity method concentration ofethyl acetate saponification reaction experiments reaction rate constants inethyl acetate and sodium hydroxide tonot equal. ℃and ℃,respectively, the relationship between the measured responses ofdifferent sizes saponification conductivity. When after the data processing, the temperature rose from ℃ ℃,the reaction rate constant from (mol-1 *L* min-1) raised (mol-1 *L*min-1), the concentration ofethyl increases sothat the reaction rate constant increased (mol-1 *L*min-1), the activation energy for the reaction /mol the test data processing plex, time consuming experimental data measured, but has been fully work out. Keywords Saponification Activation energy The reaction system non-ideal 一. 仪器和试剂: DDS-11D 型电导率仪,铂黑电极,电子天平,恒温槽,秒表,试剂瓶 1只,碱式滴定管 1根,锥形瓶 3只,100ml 具塞锥形瓶 4只,25ml 移液管 4只,5ml 移液管2只, 10ml 移液管 2只, 250ml 容量瓶 2只, 100ml 容量瓶 2只, NaOH 溶