已知Fe(OH)2的溶度积，怎样求它生成沉淀的pH值？Fe(OH)2的溶度积为1.04×10-14算出来结果是pH>=9.6怎么算的？我用了很多方法都算不出9.6要不要考虑水的电离呢？原来书里面的为25度时的溶度积，然后给出pH>=9.6我在提问时溶度积是搜索出来的，而这一溶度积是18度的悲剧
Fe2+转化为Fe(OH)2沉淀,所以溶液中[Fe2+]=3.22*10^-5mol/L因此溶液的pH>=9.6
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/etc/nginx/nginx.conf.三价铁和二价锡离子怎么反应?
小小Vm涍疧4
2FE3+ + Sn2+ ===2FE2+ + Sn4+
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2Fe3+ + Sn2+ = 2Fe2+ + Sn4+
扫描下载二维码怎样鉴别四价锡离子和二价锡离子?
突破天际136
用Fe3+鉴别,因为2Fe3+ + Sn2+ = Sn4+ + 2Fe2+
溶液颜色由棕黄色变为浅绿色,而四价锡离子无反应
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