今天冷知识百科网小编 司徒双强 给各位分享盐酸倍的方法的知识，其中也会对0.5mol每升盐酸怎么稀释五倍？(浓盐酸稀释到0.5mol/l)相关问题进行解释，如果能碰巧解决你现在面临的问题，别忘了关注本站，现在我们开始吧！
0.5mol每升**怎么稀释五倍？
0.5mol/L就是18.25g/L.设需浓**Xml.X*1.18g/ml*0.37=18.25/2X=20.9ml就是取20.9ml浓HCl,再用500-20.9=479.1ml水稀释即可假设配制100 mL的0.5mol/L的稀**，算法如下：所需的HCl的物质的量 = 0.1 L * 0.5 mol/L = 0.05mol。所以需要的浓**的量 = 0.05 mol/ 12 mol/L= 0.004166L = 4.17mL.
请问同浓度的醋酸和**各自稀释10倍，求pH的变化规律。若pH相同的醋酸和**各自稀释10倍，求pH？
1.同浓度的醋酸和**稀释十倍，**的PH小于醋酸，即表现出来的酸性**要强，因为**是强酸，在水中是完全解离的，即1MOL**产生1MOL氢离子，而醋酸是弱酸，在水中部分解离，1MOL醋酸产生的氢离子少于1MOL，即便是稀释了，醋酸仍然是弱酸，还是会部分解离，只是解离程度大一些2.而相同PH的醋酸和**稀释10呗，醋酸的PH小于**，由于部分解离的原因，若要和**保持相同的PH,醋酸的浓度时大于**的，稀释的时候，醋酸中多于**浓度部分的醋酸部分解离，导致醋酸溶液中总的氢离子浓度增加，而**中氢离子一开始就完全解离，氢离子浓度不会增加，这种情况下醋酸的PH小于**。
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