What Is the Approximate PH at the Equivalence Point of a Weak

question 67

Multiple Choice

What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous formic acid requires 29.80 mL of 0.3567 M NaOH to reach the equivalence point? K_a =1.8 × 10^-4 for formic acid.

• A) 2.06
• B) 5.48
• C) 8.52
• D) 11.94

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