www.fltk.net > 用98%的浓硫酸10mL(密度1.84gmL)配制10%的硫酸溶液,需要水多少毫升?

用98%的浓硫酸10mL(密度1.84gmL)配制10%的硫酸溶液,需要水多少毫升?

Cu+2H2SO4(浓)=CuSO4+SO2↑+2H2O,20g铜物质的量为20g/64g/mol=

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