怎么稀释75%酒精来酒精擦浴,怎么稀释成30%
人气:142 ℃ 时间:2019-10-20 20:09:43
解答
C(稀)*V(稀)=C(浓)*V(浓),30%*X=75%*100mL,X=250mL,也就是取100mL75%酒精加入150mL水,就制得30%的酒精.
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