lonization Constants of Some Weak Acids lonization Reaction Ka at 25 °C HSO, +H20 = H30*+SO,²- 1.2 x 10-2 HF + H20 = H30* +F- 3.5 x 10-4 HNO, + H,0 = H30* + NO,- 4.6 x 10-4 HCNO + H20 == H30* + NCO- 2 x 10-4 HCO,H+H20 = H30* +HCO,¯ 1.8 x 10-4 CH3CO,H+H20 = H30* + CH3CO2- 1.8 x 10-5 HCIO + H20 = H30*+CIO- 2.9 x 10-8 HB1O + H2O = H30*+Br0¯ H30*+ BrO- 2.8 x 10-9 HCN + H20 = H30*+CN- 4.9 x 10-10 Table 14.2

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter18: Electrochemistry
Section: Chapter Questions
Problem 3RQ: Table 17-1 lists common half-reactions along with the standard reduction potential associated with...
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Which acid as shown is most appropriate for preparation of a buffer solution with a pH of 3.7? Explain your choice.

lonization Constants of Some Weak Acids
lonization Reaction
Ka at 25 °C
HSO, +H20 = H30*+SO,²-
1.2 x 10-2
HF + H20 = H30* +F-
3.5 x 10-4
HNO, + H,0 = H30* + NO,-
4.6 x 10-4
HCNO + H20 == H30* + NCO-
2 x 10-4
HCO,H+H20 = H30* +HCO,¯
1.8 x 10-4
CH3CO,H+H20 = H30* + CH3CO2-
1.8 x 10-5
HCIO + H20 = H30*+CIO-
2.9 x 10-8
HB1O + H2O = H30*+Br0¯
H30*+ BrO-
2.8 x 10-9
HCN + H20 = H30*+CN-
4.9 x 10-10
Table 14.2
Transcribed Image Text:lonization Constants of Some Weak Acids lonization Reaction Ka at 25 °C HSO, +H20 = H30*+SO,²- 1.2 x 10-2 HF + H20 = H30* +F- 3.5 x 10-4 HNO, + H,0 = H30* + NO,- 4.6 x 10-4 HCNO + H20 == H30* + NCO- 2 x 10-4 HCO,H+H20 = H30* +HCO,¯ 1.8 x 10-4 CH3CO,H+H20 = H30* + CH3CO2- 1.8 x 10-5 HCIO + H20 = H30*+CIO- 2.9 x 10-8 HB1O + H2O = H30*+Br0¯ H30*+ BrO- 2.8 x 10-9 HCN + H20 = H30*+CN- 4.9 x 10-10 Table 14.2
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