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PH of solution & degree ionization pls help
What is the pH of the solution and degree ionization of a 0.75M Solution of HF in a solution of 0.12 m HC17 The Xa of hydrofl
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Answer #1

1)

concentration of HCl = 0.12 M

concentration of HF = 0.75 M

[H+] = sqrt (Ka x C) = sqrt (6.8 x 10^-4 x 0.75)

        = 0.0226 M

total [H+] = 0.12 + 0.0226 M

              = 0.14 M

pH = -log [H+] = -log (0.14)

pH = 0.846

% ionization = ([H+] / C ) x 100

                     = 0.14 / (0.12 + 0.75) x 100

% ionization = 16.4 %

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