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Unformatted text preview: 20 M in HCN and 0.12 M in NaCN. What is the
range of conjugate base to acid ratios in the buffer zone of this solution? (5 pts)
Ka = 4.9 x 10-10
HCN ⇄ H+ + CNHenderson-Hasselbalch Equation ( ) (
) The ratio of the conjugate base to acid will be 0.1 to 10 because the buffer zone is defined as ±1
pH unit. Chemistry 102 Quiz 4...
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