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配制75%乙醇溶液500ml,需用多少95%乙醇
A.325ml
B.355ml
C.395ml
D.425ml
E.455ml
参考答案
更多 “ 配制75%乙醇溶液500ml,需用多少95%乙醇A.325mlB.355mlC.395mlD.425mlE.455ml ” 相关考题
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用95%和45%的乙醇配制75%的乙醇溶液500ml,应取95%和45%的乙醇各多少毫升A.250ml,250mlB.200ml,300mlC.300ml,200mlD.225ml,275mlE.275ml,225ml
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用95%和45%的乙醇配制75%的乙醇溶液500ml,应取95%和45%的乙醇各A.250ml,250mlB.260ml,240mlC.300ml,200mlD.245ml,255mlE.350ml,150ml
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用95%和45%的乙醇配制75%的乙醇溶液500ml,应取95%和45%的乙醇各多少体积A:250ml,250ml
B:260ml,240ml
C:300ml,200ml
D:245ml,255ml
E:350ml,150ml
考题
用95%和45%的乙醇配制75%的乙醇溶液500ml,应取95%和45%的乙醇各A:250ml,250ml
B:260ml,240ml
C:300ml,200ml
D:245ml,255ml
E:350ml,150ml
考题
用95%和45%的乙醇配制75%的乙醇溶液500ml,应取95%和45%的乙醇各A.250ml,250ml
B.260ml,240ml
C.300ml,200ml
D.245ml,255ml
E.350ml,150ml
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