• 2021-04-14
    [2]将0.5600g含钙试样溶解成250mL试液,用0.02000mol/L的EDTA溶液滴定,消耗30.00mL,则试样中CaO的含量为。M(CaO)=56.08g/mol。A.3.00%B.6.01%C.12.02%D.30.00%