Use data from Tables 6C.1 and 6C.2 to place the following acids in order of increasing strength:
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Use data from Tables 6C.1 and 6C.2 to place the following acids in order of increasing strength: HCOOH, (CH3)3NH+, N2H5+, HF.
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TABLE 6C.1 Acidity Constants at 25 C* K 3.0 X 10-1 2.0 X 10- 1.7 X 10-1 Acid trichloroacetic acid, CCI,COOH benzene sulfonic acid, C6H,SO3H iodic acid, HIO3 sulfurous acid, HSO3 chlorous acid, HClO phosphoric acid, H3PO4 chloroacetic acid, CHCICOOH lactic acid, CHCH(OH)COOH nitrous acid, HNO hydrofluoric acid, HF 1.5 X 10 2 1.0 X 10-2 7.6 X 10-3 1.4 X 10-3 8.4 X 10 4 4.3 X 10-4 3.5 X 10-4 pKa 0.52 0.70 0.77 1.81 2.00 2.12 2.85 3.08 3.37 3.45 Acid formic acid, HCOOH benzoic acid, C,HCOOH acetic acid, CH,COOH carbonic acid, HCO3 hypochlorous acid, HCIO hypobromous acid, HBrO boric acid, B(OH)3 hydrocyanic acid, HCN phenol, C,H,OH hypoiodous acid, HIO K 1.8 X 10-4 6.5 X 10-5 1.8 X 10-5 4.3 X 10-7 3.0 X 10 8 2.0 10-9 7.2 X 10-10 4.9 X 10-10 1.3 X 10-10 2.3 X 10-11 pKa 3.75 4.19 4.75 6.37 7.53 8.69 9.14 9.31 9.89 10.64
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