Please calculate the Ka for a weak acid given the following data: pH = 3.72, and an initial acid concentration of 1.43 x 10-4 M (note: please express your answer with 3 sig figs.; the equilibrium reaction is shown below:) НА (аq) + H-0 () H;O* (aq) + A´ (:

Please calculate the Ka for a weak acid given the following data: pH = 3.72, and an initial acid concentration of 1.43 x 10-4 M (note: please express your answer with 3 sig figs.; the equilibrium reaction is shown below:) НА (аq) + H-0 () H;O* (aq) + A´ (:

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter16: Principles Of Chemical Reactivity: The Chemistry Of Acids And Bases

Section: Chapter Questions

Problem 127SCQ

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Question

Please calculate the Ka for a weak acid
given the following data: pH = 3.72, and an
initial acid concentration of 1.43 x 10-4 M
(note: please express your answer with 3
sig figs.; the equilibrium reaction is shown
below:)
НА(аq) + H,0 ()
H;O* (aq) + A´ (:

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