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Old 03-17-2008, 09:25 AM
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Can someone help us solve this chemistry problem?? If it's not to much to ask,...

...could you show each step?? A buffer solution is prepared that is 0.50 M in propanoic acid and 0.40 M in sodium propanoate with a solution volume of 1.00 liters. (Ka for propanoic acid = 1.3 x 10-5). What is the pH of the solution when 0.040 mol of HCl(g) is added to the solution? Assume no change in solution volume.

Much appreciated!!
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