化学物质的摩尔和质量换算公式比如我需要NaH2PO4的量为0.45mmol,但我手里的物品为NaH2PO4+2H2O 的结合物,我要称多少克NaH2PO4+2H2O 才能有0.45mmol的NaH2PO4.请附上计算过程和公式,
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![化学物质的摩尔和质量换算公式比如我需要NaH2PO4的量为0.45mmol,但我手里的物品为NaH2PO4+2H2O 的结合物,我要称多少克NaH2PO4+2H2O 才能有0.45mmol的NaH2PO4.请附上计算过程和公式,](/uploads/image/z/478857-57-7.jpg?t=%E5%8C%96%E5%AD%A6%E7%89%A9%E8%B4%A8%E7%9A%84%E6%91%A9%E5%B0%94%E5%92%8C%E8%B4%A8%E9%87%8F%E6%8D%A2%E7%AE%97%E5%85%AC%E5%BC%8F%E6%AF%94%E5%A6%82%E6%88%91%E9%9C%80%E8%A6%81NaH2PO4%E7%9A%84%E9%87%8F%E4%B8%BA0.45mmol%2C%E4%BD%86%E6%88%91%E6%89%8B%E9%87%8C%E7%9A%84%E7%89%A9%E5%93%81%E4%B8%BANaH2PO4%EF%BC%8B2H2O+%E7%9A%84%E7%BB%93%E5%90%88%E7%89%A9%2C%E6%88%91%E8%A6%81%E7%A7%B0%E5%A4%9A%E5%B0%91%E5%85%8BNaH2PO4%EF%BC%8B2H2O+%E6%89%8D%E8%83%BD%E6%9C%890.45mmol%E7%9A%84NaH2PO4.%E8%AF%B7%E9%99%84%E4%B8%8A%E8%AE%A1%E7%AE%97%E8%BF%87%E7%A8%8B%E5%92%8C%E5%85%AC%E5%BC%8F%2C)
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