化学计算题
来源:学生作业帮 编辑:作业帮 分类:化学作业 时间:2024/11/05 18:36:47
质量分数为30%的过氧化氢溶液与5%的过氧化氢溶液按a:b的质量比混合,可得7.5%的过氧化氢溶液,求a:b的值?
解题思路: 根据混合前后溶质的质量不变考虑
解题过程:
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最终答案:略
解题过程:
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最终答案:略