问题标题:
标况下VLHCl溶于1L水中密度为p的盐酸溶液,此溶液物质的量的浓度是A.1000Pv/(36.5v+1000)B.1000Pv/(v+1000)C.1000Pv/(36.5v+22400)D.vP/36.5
问题描述:
标况下VLHCl溶于1L水中密度为p的盐酸溶液,此溶液物质的量的浓度是
A.1000Pv/(36.5v+1000)
B.1000Pv/(v+1000)
C.1000Pv/(36.5v+22400)
D.vP/36.5
郭新宇回答:
HCl物质的量:V/22.4mol
HCl质量:36.5V/22.4g
溶液质量:1000+36.5V/22.4g
溶液体积:(1000+36.5V/22.4)/pmL=(1000+36.5V/22.4)/(1000p)L
溶液物质的量的浓度:1000Vp/[(1000+36.5V/22.4)*22.4]
=1000Pv/(22400+36.5V)
C
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