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點樣可以只由density計出mass?
wiki:學術，在古代中國是指追尋研究學問的方法與水準
https://zh.wikipedia.org/wiki/学术
條問題:The density of a sample of sulfuric acid is 1.2dm^(-3). Calculate its conecntraion in mol dm^(-3).
If this acid is added to magnesium,calculate the max. volume of gas obtained under room conditions.
[Molar volume of a gas under room conditions=24 dm^(3)
Relative atomic masses:H=1.0 S=32.0 O=16.0 Mg=24.3]
https://zh.wikipedia.org/wiki/学术
條問題:The density of a sample of sulfuric acid is 1.2dm^(-3). Calculate its conecntraion in mol dm^(-3).
If this acid is added to magnesium,calculate the max. volume of gas obtained under room conditions.
[Molar volume of a gas under room conditions=24 dm^(3)
Relative atomic masses:H=1.0 S=32.0 O=16.0 Mg=24.3]
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