高一化學算試的問題 - 酒精
By Linda
at 2009-11-24T00:00
at 2009-11-24T00:00
Table of Contents
1.配置10%食鹽溶液100克,需要時鹽水多少克?2.2.0M的硫酸鈉(Na2So4)水溶液200ML,含有硫酸納多少克?3.1000G的水中涵0.010G的銅離子,則濃度為多少PPM?4.CuO分子2.4乘以10的22次方,重幾克?Cu原子為幾莫耳?5.0.5莫耳的水(H2O)重幾克?含有幾個氫氣原子?6.將3莫耳的酒精(C2H5OH)完全燃燒,需要氧氣多少公克?C2H5OH+3O2→2CO2+3H
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酒精
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By Irma
at 2009-11-24T19:24
at 2009-11-24T19:24
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