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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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´ (:
Transcribed Image Text: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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