一、98克的H3PO4中含氧元素的质量是多少克?(列式计算)(H-1 O-16 P-31 Mg-24二、在Mg(OH)2中1、Mr=2、氢镁氧元素质量比=3、O(氧)%=4、多少克Mg(OH)2中含有氧元素32克?(列式计算)回答请按序号写
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![一、98克的H3PO4中含氧元素的质量是多少克?(列式计算)(H-1 O-16 P-31 Mg-24二、在Mg(OH)2中1、Mr=2、氢镁氧元素质量比=3、O(氧)%=4、多少克Mg(OH)2中含有氧元素32克?(列式计算)回答请按序号写](/uploads/image/z/4799285-53-5.jpg?t=%E4%B8%80%E3%80%8198%E5%85%8B%E7%9A%84H3PO4%E4%B8%AD%E5%90%AB%E6%B0%A7%E5%85%83%E7%B4%A0%E7%9A%84%E8%B4%A8%E9%87%8F%E6%98%AF%E5%A4%9A%E5%B0%91%E5%85%8B%3F%EF%BC%88%E5%88%97%E5%BC%8F%E8%AE%A1%E7%AE%97%EF%BC%89%EF%BC%88H-1+O-16+P-31+Mg-24%E4%BA%8C%E3%80%81%E5%9C%A8Mg%28OH%292%E4%B8%AD1%E3%80%81Mr%3D2%E3%80%81%E6%B0%A2%E9%95%81%E6%B0%A7%E5%85%83%E7%B4%A0%E8%B4%A8%E9%87%8F%E6%AF%94%3D3%E3%80%81O%EF%BC%88%E6%B0%A7%EF%BC%89%25%3D4%E3%80%81%E5%A4%9A%E5%B0%91%E5%85%8BMg%28OH%292%E4%B8%AD%E5%90%AB%E6%9C%89%E6%B0%A7%E5%85%83%E7%B4%A032%E5%85%8B%3F%EF%BC%88%E5%88%97%E5%BC%8F%E8%AE%A1%E7%AE%97%EF%BC%89%E5%9B%9E%E7%AD%94%E8%AF%B7%E6%8C%89%E5%BA%8F%E5%8F%B7%E5%86%99)
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