凝固点降低法测定摩尔质量实验装置的改进  

Improvement of the Experiment Device of Measuring Molar Mass by Freezing Point Depression Method

作　　者：王保玉[1] 韩民乐[1] 李云平[1] 李森兰[1] 

机构地区：[1]洛阳师范学院化学化工学院,河南洛阳471022

出　　处：《洛阳师范学院学报》2009年第2期148-149,共2页Journal of Luoyang Normal University

摘　　要：对凝固点降低法测定摩尔质量的实验装置进行了改进.实验结果表明,改进后的装置操作方便,所得结果准确、重现性好.以环己烷作溶剂、萘为溶质测得萘摩尔质量的相对误差均在1%以内.A device for measuring molarmass by freezing point depression method was improved. The results showed that the improved device is easy to operate, the experiment results is precise and could reappear. With the hexamethylene as solvent and naphthalene as solute, the relative error of molar mass of naphthalene measured is not much as 1%.

关 键 词：凝固点降低 摩尔质量 实验装置 环己烷 萘 

分 类 号：O642[理学—物理化学]