A monoprotic weak acid, HA, dissociates in water according to the reaction НА (ад) — н (аq) + A (aq) The equilibrium concentrations of the reactants and products are [HA] = 0.200 M, H+ = 4.00 x 10 M, and %3D [A-] = 4.00 x 104 M. Calculate the value of pK, for the acid HA. pKa =

A monoprotic weak acid, HA, dissociates in water according to the reaction НА (ад) — н (аq) + A (aq) The equilibrium concentrations of the reactants and products are [HA] = 0.200 M, H+ = 4.00 x 10 M, and %3D [A-] = 4.00 x 104 M. Calculate the value of pK, for the acid HA. pKa =

Introductory Chemistry: A Foundation

8th Edition

ISBN:9781285199030

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter17: Equilibrium

Section: Chapter Questions

Problem 20QAP

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Question

A monoprotic weak acid, HA, dissociates in water according to the reaction
HA(aq) H* (aq) + A (aq)
The equilibrium concentrations of the reactants and products are [HA] = 0.200 M, H* = 4.00 x 10 M, and
A= 4.00 x 10 M. Calculate the value of pK, for the acid HA.
%3D
pK, -
%3D

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