500cc的百分之95酒精如何稀釋成500cc百分之75的酒 - 酒精
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By Edwina
at 2009-03-02T00:00
at 2009-03-02T00:00
Table of Contents
500cc的百分之95酒精如何稀釋成500cc百分之75的酒精
500cc的百分之95酒精如何稀釋成500cc百分之75的酒精
500cc的百分之95酒精如何稀釋成500cc百分之75的酒精
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By Valerie
at 2009-03-02T05:25
at 2009-03-02T05:25
若是的話
先假設需要V cc的百分之95的酒精
稀釋前後溶質的體積不變,因此0.95V=0.75500,得V=394.7 cc
因此取394.7 cc的百分之95酒精再加蒸餾水至總體積等於500 cc,即為所求
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