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Author Question: What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of ... (Read 90 times)

jayhills49

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Question 1

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 0.2567 M NaOH? Ka = 1.8 × 10-4 for formic acid.
◦ 8.44
◦ 5.56
◦ 2.13
◦ 11.87

Question 2

What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous hydrofluoric acid requires 30.00 mL of 0.100 M NaOH?  Ka = 6.76 × 10-4 for HF.
◦ 2.05
◦ 7.95
◦ 6.05
◦ 11.95


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Marked as best answer by jayhills49 on Feb 15, 2020

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jayhills49

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Reply 2 on: Feb 15, 2020
Excellent


sarah_brady415

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Reply 3 on: Yesterday
Gracias!

 

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