常温下某溶液中含有8种离子,有关离子的浓度如下:c(Na+)= xmol/L c(SO4 2-)=0.15mol/L.c(K+)=0.2mol/L ,c(Cl-)=0.45mol/L ,c(Mg 2+) = 0.25mol/L,c(NO3 2-)=0.25mol/L,c(OH-)=1×10^-13 mol/L 则x值为 A.0.2 B.0.3 C.0.4 D.0.1
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![常温下某溶液中含有8种离子,有关离子的浓度如下:c(Na+)= xmol/L c(SO4 2-)=0.15mol/L.c(K+)=0.2mol/L ,c(Cl-)=0.45mol/L ,c(Mg 2+) = 0.25mol/L,c(NO3 2-)=0.25mol/L,c(OH-)=1×10^-13 mol/L 则x值为 A.0.2 B.0.3 C.0.4 D.0.1](/uploads/image/z/6165991-55-1.jpg?t=%E5%B8%B8%E6%B8%A9%E4%B8%8B%E6%9F%90%E6%BA%B6%E6%B6%B2%E4%B8%AD%E5%90%AB%E6%9C%898%E7%A7%8D%E7%A6%BB%E5%AD%90%2C%E6%9C%89%E5%85%B3%E7%A6%BB%E5%AD%90%E7%9A%84%E6%B5%93%E5%BA%A6%E5%A6%82%E4%B8%8B%3Ac%28Na%2B%29%3D+xmol%2FL+c%28SO4+2-%29%3D0.15mol%2FL.c%28K%2B%29%3D0.2mol%2FL+%2Cc%28Cl-%29%3D0.45mol%2FL+%2Cc%28Mg+2%2B%29+%3D+0.25mol%2FL%2Cc%28NO3+2-%29%3D0.25mol%2FL%2Cc%28OH-%29%3D1%C3%9710%5E-13+mol%2FL+%E5%88%99x%E5%80%BC%E4%B8%BA+A.0.2+B.0.3+C.0.4+D.0.1)
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