Wednesday
April 23, 2014

Homework Help: College Chemistry

Posted by Elizabeth on Saturday, November 20, 2010 at 2:08pm.

How many milliliters of 1.55 M NaOH must be added to 125 mL of .19 M NaH2PO4 to make a buffer solution with a pH of 6.90?

I have attempted to solve this with no success, as this is an online homework assignment that requires an exact answer.
Hoping that you will be able to help. Thanks.

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