分析化學計算題 - 酒精
By Erin
at 2014-11-13T00:00
at 2014-11-13T00:00
Table of Contents
目前有95%酒精20(L),如何配置75%的酒精2500(C.C)
Tags:
酒精
All Comments
By Skylar DavisLinda
at 2014-11-17T05:47
at 2014-11-17T05:47
PS .事實上混合後,體積會變小
75%的酒精2500 cc
=>含無水酒精 =2500×75%= 1875 cc
1875/0.95 ≒1974 cc
=>需取 95%酒精溶液 1974 cc
配置方法:取95%酒精 1974cc 置入有刻度容器,然後加蒸餾水稀釋至溶液體積為2500cc即可
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