Using the K a K a values given in Table 7.2, calculate the concentrations of all species present and the p H p H for

Using the $K_a$ values given in Table 7.2, calculate the concentrations of all species present and the $pH$ for each of the following.

a. $0.20MHOCl$

b. $1.5M{HOC}_6{H}_5$

c. $0.020MHF$

TABLE 7.2 Values of K for Some Common Monoprotic Acids Formula Name Hydrogen sulfate ion Chlorous acid HSO4 HCIO HCHCIO HF HNO HCH3O2 [Al(HO)]+ HOCI HCN NH4+ HOC6H5 Monochloracetic acid Hydrofluoric acid Nitrous acid Acetic acid Hydrated aluminum(III) ion Hypochlorous acid Hydrocyanic acid Ammonium ion Phenol Value of K 1.2 x 10- 1.2 x 10-2 1.35 x 10-3 7.2 x 10-4 4.0 x 10 1.8 x 10-5 1.4 x 10- 3.5 x 10-8 6.2 10-10 5.6 10-10 1.6 10-10 Increasing acid strength