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that´s a

分类: 作业答案 • 2021-12-31 10:43:23

问题描述：

that´s a

答

就这样说定了

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FeS的电离中c(Fe+)*c(s2-)=6.25*10^-18,又知溶液中,[c(H+)]^2*c(S2-)=1*10^-22现将适量的FeS,投入饱和溶液中,要使溶液的c(Fe2+)达到1mol/L,应调节溶液的PH为多少?
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56.61厘米等于一尺几?

that´s a

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