What Volume of 0

question 93

Multiple Choice

What volume of 0.100 M NaOH is needed to make 100.0 mL of a buffer solution with a pH of 6.00 if one starts with 50.0 mL of 0.100 M potassium hydrogen phthalate? The K_a2 for potassium hydrogen phthalate is 3.1 × 10^-6.

• A)22.4 mL
• B)27.6 mL
• C)30.2 mL
• D)37.8 mL

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