铝离子和偏铝酸根反应碳酸为什么不反应

来源：蜘蛛抓取(WebSpider) 时间：2016-10-12 13:48 标签： 碳酸钠和氢离子反应
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/etc/nginx/nginx.conf.为什么铝离子不能跟碳酸氢根共存_百度文库
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为什么铝离子不能跟碳酸氢根共存
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/etc/nginx/nginx.conf.铝离子和碳酸氢根双水解生成碳酸铝为什么是生成氢氧化铝而不是碳酸铝
_吖锕叫L坥78
碳酸氢根水解,HCO3(-)+H2O=H2CO3+OH(-)铝离子水解,Al(3+)+3H2O=Al(OH)3+3H+（两个方程式中用可逆符号）可以看出,氢离子和氢氧根离子反应,使平衡向右移动且氢氧化铝的溶解度极小.所以会反应完全Al(3+)+3HCO3(-)+=Al(OH)3↓+3CO2↑
碳酸氢根水解，HCO3(-)+H2O=H2CO3+OH(-)生成的碳酸不会电离出碳酸根跟铝离子反应吗
H2CO3 本来就是弱电解质 电解出的碳酸根 量很少 所以不用考虑。
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