Using Table 7.2, arrange the following species according to their strength as bases: H₂O, F^–, Cl^–, NO₂^–, and CN^–.

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TABLE 7.2 Values of K for Some Common Monoprotic Acids Formula Name Hydrogen sulfate ion Chlorous acid HSO4 HCIO HCHCIO HF HNO HCH302 [Al(HO)]+ HCN NH4 HOCHS + 3+ 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- 1.35 x 10-3 7.2 x 10 4.0 x 101 -4 1.8 x 10 1.4 x 10-5 3.5 10-8 6.2 10-10 5.6 10-10 1.6 10-10 Increasing acid strength