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某石灰石样品.经测定含碳元素9.6%.则样品中含碳酸钙的质量分数是( ) A.8%B.80
某石灰石样品.经测定含碳元素9.6%.则样品中含碳酸钙的质量分数是( ) A.8%B.80
发布时间:2021-02-20 20:28:22
某石灰石样品,经测定含碳元素9.6%,则样品中含碳酸钙的质量分数是( )
A、8%B、80%C、20%D、96%
网友回答
答案:
分析:
先计算出纯净的碳酸钙中碳元素的质量分数,再根据纯度=
含杂质物质中某元素的质量分数
纯净物质中某元素的质量分数
×100%,进行解答.
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