這樣稀釋出來是幾%呢??? - 酒精
By Tristan Cohan
at 2011-07-28T00:00
at 2011-07-28T00:00
Table of Contents
我用400c.c的酒精原液+130c.c的蒸餾水...
這樣稀釋出來是幾%呢?
這樣稀釋出來是幾%呢?
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酒精
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By Lydia
at 2011-08-01T11:53
at 2011-08-01T11:53
這樣稀釋出來是幾%呢?
答 酒精原液為95%故400c.c的酒精要乘0.95
再除全部溶液(溶劑加溶質)
( 400*0.95)/(400+130)=71.69%
By Odelette
at 2011-07-29T19:16
at 2011-07-29T19:16
75.47%乘0.95=71.69%
By Skylar Davis
at 2011-07-31T06:28
at 2011-07-31T06:28
400/530
530/100=5.3
400/5.3=75.471
75%左右
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