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Unformatted text preview: + that each acid will donate to the solution separately, then add them together. The lactic acid will cause the H + concentration to be 6.90 x 10-4 M and the propionic acid will cause the H + concentration to be 8.85 x 10-4 M. When you add these together, you find the total H + concentration in the solution is 1.58 x 10-3 M. To find the pH, take the negative log of this number to get a pH of 2.80. 4) What is the pH of a 0.00056 M butyric acid solution. pK a = 4.82. pK a = -log[K a ]. Using this equation, the K a of butyric acid is found to be 1.51 x 10-5 . When you solve this problem in the same way you solved the ones above, you find the pH of this solution is 4.04. For chemistry help, visit www.chemfiesta.com © 2002 Cavalcade Publishing – All Rights Reserved...
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This note was uploaded on 11/13/2010 for the course CHEM 11578 taught by Professor Juliakovacs during the Fall '09 term at University of Washington.
- Fall '09