Waec Model Questions Vol1 2019 Chemistry Question 7
Practice objective / multiple choice question 7 from the 2019 Waec Model Questions Vol1 Chemistry examination.
A buffer solution is prepared by dissolving 0.20 mol of NH₄Cl and 0.10 mol of NH₃ in 1.00 L of water at 25 °C. (Ka for NH₄⁺ = 5.6 × 10⁻¹⁰.) Calculate the pH of the solution after 0.020 mol of HCl is added.
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About This Question
This is Waec Model Questions Vol1 2019 Chemistry Question 7. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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