A buffer solution consists of 0.100 mol Na3PO4 and 0.100 mol Na2HPO4 dissolved in water. How much of — Acids and Bases Chemistry Question
Question
A buffer solution consists of 0.100 mol Na3PO4 and 0.100 mol Na2HPO4 dissolved in water. How much of which component of the buffer must be added to change the pH to 12.25? The pKa of HPO4 2- is 12.37.
A.✓ Correct
0.032 mol Na2HPO4
B.
0.032 mol Na3PO4
C.
0.132 mol Na2HPO4
D.
0.132 mol Na3PO4
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