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[交流] 【求助】溶液配置 已有1人参与

现要配制50%(w/v)氢氧化钠溶液,如何配制?请各位虫友帮忙!
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用质量浓度取代习用的以“W/V”或“m/V”表示的浓度,单位为“kg/L”或“kg/m3”。500g/L的NaOH液,少量液体溶解500gNaOH,冷却,至1L容量瓶,定容。(可以定比例缩小)
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