Igcse Model Questions Vol1 2020 Chemistry Question 11
Practice objective / multiple choice question 11 from the 2020 Igcse Model Questions Vol1 Chemistry examination.
A solution contains 0.10 mol of acetic acid (\(\mathrm{CH_3COOH}\), \(K_a = 1.8 \times 10^{-5}\)) and 0.10 mol of formic acid (\(\mathrm{HCOOH}\), \(K_a = 1.8 \times 10^{-4}\)) dissolved in 1.0 L of water. The measured pH of the solution is 2.30. Assuming the acids dissociate independently, calculate the fraction of the total acid present as acetate ion (\(\mathrm{CH_3COO^-}\)).
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This is Igcse Model Questions Vol1 2020 Chemistry Question 11. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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