A .量取95%乙醇395ml,用水稀释至500ml
B .量取95%乙醇395ml,加入水105ml,混匀
C .量称95%乙醇375ml,用水稀释500ml
D .量取95%乙醇375ml,加入125ml水混匀
[单选题]配制75%乙醇溶液500ml,需用多少95%乙醇A.325mlB.355mlC.395mlD.425mlE.455ml
[单选题]现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水A.155mlB.165mlC.178mlD.185mlE.195ml
[单选题,A2型题,A1/A2型题] 现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水约()。A . 132mlB . 179mlC . 185mlD . 279mlE . 385ml
[单选题]现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水约A.132mlB.179mlC.185mlD.279mlE.385ml
[单选题]配制75%乙醇溶液100mL,需95%乙醇( )。A.97mLB.80mLC.65mLD.79mLE.60mL
[单选题]75%乙醇配制方法为每100ml95%乙醇加水ml()A .17.5mlB .20.2mlC .26.7mlD .33.3ml
[单选题]现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水的量是A.132mlB.179mlC.185mlD.279mlE.385ml
[单选题]现有95%乙醇500ml,要配制l70%乙醇,需加入灭菌蒸馏水约A .132mlB .179mlC .185mlD .279m1E .285ml
[问答题] 市售含95%乙醇,怎样配制成500ML用于皮肤消毒的酒精?
[单选题]欲用95%乙醇和蒸馏水配制70%乙醇1000ml,所取95%乙醇体积约为( )。A.500mlB.665mlC.700mlD.737mlE.889m