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某实验室模拟酸雨，现有浓度为30％和10％的两种盐酸溶液
【混合溶液问题】历年真题精讲【例５】（2017四川）某实验室模拟酸雨，现有浓度为30％和10％的两种盐酸溶液，实验需要将二者混合配置出浓度为16％的盐酸700克备用，那么30％的盐酸需要多少克？ Ａ.180 Ｂ. 190 Ｃ. 200 Ｄ. 210
行测数学运算混合溶液问题专项视频合集20/28
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