A Solution Contains 10

question 67

Multiple Choice

A solution contains 10.mmol of H₃PO₄ and 5.0 mmol of NaH₂PO₄.How many milliliters of 0.10 M NaOH must be added to reach the second equivalence point of the titration of the H₃PO₄ with NaOH?

• A)250 mL
• B)2.0 × 10² mL
• C)50 mL
• D)150 mL
• E)1.0 × 10² mL

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