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A buffer solution contains 0.484 M NaH2PO4 and 0.211 M K2HPO4. Determine the pH change when...

A buffer solution contains 0.484 M NaH2PO4 and 0.211 M K2HPO4. Determine the pH change when 0.054 mol HCl is added to 1.00 L of the buffer.

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