whatisthepercentdissociationofaceticacidina0.1Msolutionifthe[H3O+]is1*10-3mole/liter?

Question

what is the percent dissociation of acetic acid in a 0.1M solution if the [H3O+] is 1*10-3 mole/liter?

Answer 1

翻译：0.1 M的乙酸溶液,H+浓度是1*10-3 mol/L,求醋酸的电离度.
pH=3,水的电离可以忽略,那么电离出的氢离子全部来自乙酸.
电离度=已经电离的乙酸/全部乙酸=氢离子浓度/乙酸浓度=0.001/0.1=1%
西方的1 M就是1 mol/L