含盐70%的盐水2千克和含盐60%的盐水3千克混合后浓度是多少?要使浓度为32%,应加水多少千克?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 02:56:31
![含盐70%的盐水2千克和含盐60%的盐水3千克混合后浓度是多少?要使浓度为32%,应加水多少千克?](/uploads/image/z/11296481-41-1.jpg?t=%E5%90%AB%E7%9B%9070%25%E7%9A%84%E7%9B%90%E6%B0%B42%E5%8D%83%E5%85%8B%E5%92%8C%E5%90%AB%E7%9B%9060%25%E7%9A%84%E7%9B%90%E6%B0%B43%E5%8D%83%E5%85%8B%E6%B7%B7%E5%90%88%E5%90%8E%E6%B5%93%E5%BA%A6%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E8%A6%81%E4%BD%BF%E6%B5%93%E5%BA%A6%E4%B8%BA32%25%2C%E5%BA%94%E5%8A%A0%E6%B0%B4%E5%A4%9A%E5%B0%91%E5%8D%83%E5%85%8B%3F)
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