摘要:A.50mL 50g B.45.5mL 50g C.55mL 40.5g D.45.5mL 54.5g
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配制100g质量分数为10%的盐酸,需要质量分数为20%的盐酸(密度为1.1g/cm3)的体积和水的质量分别是( )
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| A.50ml、50g | B.45.5ml、50g |
| C.55ml、40.5g | D.45.5ml、54.5g |