chemistry 2

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which of the following has the highest bugger 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.

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