Homework Help: College Chem 2

Posted by DebC on Saturday, March 3, 2012 at 5:31pm.

which of the following has the highest buffer capacity?

A 0.10M H2PO4-/0.10M HPO4 -2
B 0.50 M H2PO4-/0.10 M HPO 2-
C 0.10 M H2PO4-/0.50 M HPO4 2-
D 0.50 M H2PO4-/0.50M HPO4 2-
E They all hae the same buffer capacity.

There is a group of us working together.

College Chem 2 - DrBob222, Saturday, March 3, 2012 at 6:08pm
Then look at the answers I gave to this question earlier. The best buffer for a particular solution is one in which the pKa of the buffer is in the range of the desired pH and when the term, log (base/acid) is 0.

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