要配制100g,20%的硝酸钾溶液,需要硝酸钾和水各多少克 (具体过程)
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要配制100g,20%的硝酸钾溶液,需要硝酸钾和水各多少克 (具体过程)
要配制100g,20%的硝酸钾溶液,需要硝酸钾和水各多少克 (具体过程)
要配制100g,20%的硝酸钾溶液,需要硝酸钾和水各多少克 (具体过程)
需要硝酸钾 100g*20%=20g
水 100g-20g=80g
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