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

question 39

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 (HCOOH) requires 29.80 mL of 0. 3567 mol L-1 NaOH? Ka =1.8 × 10-4 What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous formic acid (HCOOH) requires 29.80 mL of 0. 3567 mol L<sup>-1</sup> NaOH? K<sub>a</sub> =1.8 × 10<sup>-4</sup> for formic acid. A) 2. 06 B) 5. 48 C) 8. 52 D) 11.94 for formic acid.

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