...2015年真题)欲用95%乙醇和蒸馏水配制70%乙醇1000ml,所取95%乙醇体积约为( ...[37%]

(2015年真题)欲用95%乙醇和蒸馏水配制70%乙醇1000ml,所取95%乙醇体积约为(  )。

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现有95%乙醇500ml,要配制70%乙醇,需加入灭菌馏水(  )。[37%]

现有95%乙醇500ml,要配制70%乙醇,需加入灭菌馏水(  )。A.155ml B.165ml C.178ml D.185ml E.195ml

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现有95%乙醇500ml,要配制70%乙醇,需加入灭菌馏水(  )。[37%]

现有95%乙醇500ml,要配制70%乙醇,需加入灭菌馏水(  )。A.155ml B.165ml C.178ml D.185ml E.195ml

查看答案

现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水(  )[37%]

现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水(  )A.155ml B.165ml C.178ml D.185ml E.195ml

查看答案

现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水(  )[37%]

现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水(  )A.155ml B.165ml C.178ml D.185ml E.195ml

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若需要70%乙醇1000ml,现有95%乙醇应如何配制[37%]

若需要70%乙醇1000ml,现有95%乙醇应如何配制

查看答案

现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水约[37%]

现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水约A.132ml B.179ml C.185ml D.279ml E.385ml

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现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水[37%]

现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水 A.155ml B.165ml C.178ml D.185ml E.

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欲用95%乙醇和蒸馏水配置70%乙醇500ml,所取95%乙醇体积约为()A.368ml B.325ml C...[37%]

欲用95%乙醇和蒸馏水配置70%乙醇500ml,所取95%乙醇体积约为()A.368ml B.325ml C.250ml D.168ml E.500ml

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欲用95%乙醇和蒸馏水配置70%乙醇500ml,所取95%乙醇体积约为()A.368ml B.325ml C...[37%]

欲用95%乙醇和蒸馏水配置70%乙醇500ml,所取95%乙醇体积约为()A.368ml B.325ml C.250ml D.168ml E.500ml

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