A Solution Contains 25 Mmol of H₃PO₄ and 10

question 14

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

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