帮忙解释一道高一化学题目在硫酸铝,硫酸钾和明矾的混合溶液中,如果c(SO42-)=0.2mol/L,当加入等体积的0.2mol/L KOH溶液时,生成沉淀恰好完全溶解,则原混合物中K+的物质量浓度是( )A 0.2B 0.25C 0.45
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![帮忙解释一道高一化学题目在硫酸铝,硫酸钾和明矾的混合溶液中,如果c(SO42-)=0.2mol/L,当加入等体积的0.2mol/L KOH溶液时,生成沉淀恰好完全溶解,则原混合物中K+的物质量浓度是( )A 0.2B 0.25C 0.45](/uploads/image/z/1436373-45-3.jpg?t=%E5%B8%AE%E5%BF%99%E8%A7%A3%E9%87%8A%E4%B8%80%E9%81%93%E9%AB%98%E4%B8%80%E5%8C%96%E5%AD%A6%E9%A2%98%E7%9B%AE%E5%9C%A8%E7%A1%AB%E9%85%B8%E9%93%9D%2C%E7%A1%AB%E9%85%B8%E9%92%BE%E5%92%8C%E6%98%8E%E7%9F%BE%E7%9A%84%E6%B7%B7%E5%90%88%E6%BA%B6%E6%B6%B2%E4%B8%AD%2C%E5%A6%82%E6%9E%9Cc%28SO42-%29%3D0.2mol%2FL%2C%E5%BD%93%E5%8A%A0%E5%85%A5%E7%AD%89%E4%BD%93%E7%A7%AF%E7%9A%840.2mol%2FL+KOH%E6%BA%B6%E6%B6%B2%E6%97%B6%2C%E7%94%9F%E6%88%90%E6%B2%89%E6%B7%80%E6%81%B0%E5%A5%BD%E5%AE%8C%E5%85%A8%E6%BA%B6%E8%A7%A3%2C%E5%88%99%E5%8E%9F%E6%B7%B7%E5%90%88%E7%89%A9%E4%B8%ADK%2B%E7%9A%84%E7%89%A9%E8%B4%A8%E9%87%8F%E6%B5%93%E5%BA%A6%E6%98%AF%EF%BC%88++%EF%BC%89A+0.2B+0.25C+0.45)
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