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April 27, 2015

Homework Help: chemistry

Posted by Ryn on Monday, September 5, 2011 at 11:58am.

Prepare 500mL of a 0.200 M acetate buffer at pH 4.90 using only pure acetic acid, 3M NaOH, and water.
1) Add acetic acid to ~400mL of water in a 500 mL beaker. How many grams of acetic acid are needed?
2)Add 3 M NaOH solution until pH is 4.90. What volume of NaOH is needed? (ignore activity coefficients)

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