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A Solution Contains 25 Mmol of H3PO4 and 10

Question 77

Multiple Choice

A solution contains 25 mmol of H3PO4 and 10. mmol of NaH2PO4. What volume of 2.0 M NaOH must be added to reach the second equivalence point of the titration of the H3PO4 with NaOH?


A) 60. mL
B) 30. mL
C) 5.0 mL
D) 12 mL
E) 25 mL

Correct Answer:

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