Calculate the acetate ion concentration in a solution prepared by dissolving8.20

Question

Calculate the acetate ionconcentration in a solution prepared by dissolving8.20×10-3 mol of HCl(g) in 1.00 L of9.00×10-1 M aqueous acetic acid(Ka = 1.80×10-5).

Calculate the pH of the above solution.

Assume that the volume of the solution does not change upondissolution of the HCl.

Explanation / Answer

AA + H20 ====> A- + H+ 9E-1           ---              0      0 -x               ----              x       x 9E-1-x      -----              x       x 1.80E-5=x^2/9E-1-x Solve for X H          +        A-    ======> AA x+.0082            x                      9E-1-x ph=-log(x+.0082/1)

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