100 mL of 1.0 M formic acid (HCOOH) is titrated with 1.0 M sodium 9. hydroxide (NaOH). The titration curve is shown. 8 What is the approximate pKa ? 7 4 3 1 0.05 0.10 Moles of base pKa = 3.9 At the pKa, what fraction of the carboxyl group will have been converted to CO0-? Express your answer as a decimal, not a percent. fraction converted: 0.005 Hd

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100 mL of 1.0 M formic acid (HCOOH) is titrated with 1.0 M sodium
9.
hydroxide (NaOH). The titration curve is shown.
8
What is the approximate pKa ?
7
4
3
1
0.05
0.10
Moles of base
pKa =
3.9
At the pKa, what fraction of the carboxyl group will have been converted to CO0-?
Express your answer as a decimal, not a percent.
fraction converted:
0.005
Hd
Transcribed Image Text:100 mL of 1.0 M formic acid (HCOOH) is titrated with 1.0 M sodium 9. hydroxide (NaOH). The titration curve is shown. 8 What is the approximate pKa ? 7 4 3 1 0.05 0.10 Moles of base pKa = 3.9 At the pKa, what fraction of the carboxyl group will have been converted to CO0-? Express your answer as a decimal, not a percent. fraction converted: 0.005 Hd
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