二氧化氯PPM濃度換算:－20162016韓劇推薦|討論2016韓劇推薦推薦好看的韓劇推薦與韓劇推薦2016韓劇排行榜前十名 , 好看的韓劇推薦 , 2016韓劇收視率

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二氧化氯PPM濃度換算

Jul 11th 2013, 13:07

版大好，請看計算如下

7.5% 20公斤的二氧化氯稀釋變成0.0375ppm，這樣需要多少的水量

原先的溶質重 = 7.5% × 20公斤 = 1.5公斤

稀釋後溶質重 = 1.5公斤（∵未加入溶質）

稀釋後溶液重 = 1.5公斤 ÷ 0.0375ppm

　　　　　　 = 1.5公斤 × (1000000 ÷ 0.0375)

　　　　　　 = 40000000公斤

應加入的水量 = 稀釋後溶液重 - 原先的溶液重

　　　　　　 = 40000000公斤 - 20公斤

　　　　　　 = 39999980公斤

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