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What is the approximate pH at the equivalence point of a weak acid-strong base titration if...

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Chemistry

What is the approximate pH at the equivalence point of a weakacid-strong base titration if 25 mL 21) of aqueous formic acidrequires 29.80 mL of 0.0567 M NaOH? Ka =1.8 × 10-4 forformic acid.

A) 2.46 B) 8.12 C) 11.54 D) 5.88

Answer & Explanation Solved by verified expert
3.8 Ratings (383 Votes)
given equivalence point we know that at equivalence point moles of acid moles of base added also we know that moles molarity x volume so Ma x Va Mb x Vb so using the given values we get Ma x 25 00567    See Answer
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