20B_HW6 - -, where HX is a weak acid with K a = 1.0 x 10-5...

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CHEM 20B Winter 2010 Homework #6 - Due Wednesday, February 17 th 1. Oxtoby 15.46 2. Oxtoby 15.50 3. Oxtoby 15.68 4. What volume of 1.0 M KOH must be added to 10 ml of 1.0 M acetic acid (CH 3 COOH) to give a pH of 5.0? (K a for acetic acid = 1.8 x 10 -5 M). Is this mixture a good buffer? Why or why not? 5. Suppose you have a buffer at pH 5.0 that is 1.00 M in HX and 1.00 M in X
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Unformatted text preview: -, where HX is a weak acid with K a = 1.0 x 10-5 M. Calculate the effects of adding 50 ml of 1.0 M HCl to a 1-liter portion of this buffer and of adding 50 ml of 1.0 M NaOH to a separate 1-liter portion. What will the final pH be in each case? 6. Oxtoby 16.12 7. Oxtoby 16.28 8. Oxtoby 16.36 9. Oxtoby 16.62 10. Oxtoby 16.82...
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This note was uploaded on 09/03/2010 for the course CHEM 20B chem 20b taught by Professor Unknown during the Winter '10 term at UCLA.

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