Horvath Practice Problems 66

Horvath Practice Problems 66 - 2 ¤ / [ HC 2 H 3 O 2 ] ....

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3. It will be important to be able to work the above bu f er calculations in a di f erent way so that we can prepare a bu f er of a desired pH. Prepare 100 ml of a acetate bu f er with a pH of 4.25. (a) First use the pH f nd £ H + ¤ (b) Now you know £ H + ¤ and K a . Solve for the ratio, £ C 2 H 3 O
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Unformatted text preview: 2 ¤ / [ HC 2 H 3 O 2 ] . Any 100 ml solution that has this ratio of concentrations will give the desired pH. Homework Reading : Kotz and Treichel, 18.1, 18.2 Problems : Chapter 18: 1, 5, 7, 8, 19, 21 THE COMMON ION EFFECT AND BUFFERS 65...
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This document was uploaded on 11/01/2011 for the course CHM 2046 at University of Florida.

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