A.700.1
B.721.2
C.736.8
D.742.5
E.763.2
[单选题]若需用70%乙醇1000ml,现有95%乙醇,应取多少量的95%乙醇进行配制( )。A.536.8mlB.636.8mlC.836.8mlD.736.8mlE.568.6ml
[单选题]若需要70%的乙醇1000ml,现有95%的乙醇应如何配制A.取263.2ml95%的乙醇,加水稀释至1000mlB.取263.2ml95%的乙醇,加
[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
[单选题]现有95%乙醇1000ml,要配制70%乙醇,需加入灭菌蒸馏水A.310mlB.320mlC.357mlD.370mlE.410ml
[单选题,A2型题,A1/A2型题] 护士小李需要用70%乙醇,现有95%乙醇500ml,她需加入多少灭菌蒸馏水()。A . 132mlB . 179mlC . 185mlD . 279mlE . 385ml
[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]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]配制75%乙醇溶液100mL,需95%乙醇( )。A.97mLB.80mLC.65mLD.79mLE.60mL
[单选题]用95%的乙醇配制75%的乙醇500ml,下面配制正确的是()。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]用95%和20%的乙醇制备60%乙醇150ml,需20%乙醇多少ml()A .55mlB .60mlC .65mlD .70mlE .75ml