a mixture of Caco3 and Baco3 is 42.8% Co3 by mass. find the mass percent of baCo3 in the mixture
问题描述：
a mixture of Caco3 and Baco3 is 42.8% Co3 by mass. find the mass percent of baCo3 in the mixture
什么是is 42.8% Co3 by mass? 是说混合物有42.8%的重量是Co3么?
答
在含有碳酸钙和碳酸钡的混合物中,碳酸根的质量占了总质量的42.8%.计算碳酸钡在混合物中的质量比率.
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