Waec Model Questions Vol1 2021 Chemistry Question 8
Practice objective / multiple choice question 8 from the 2021 Waec Model Questions Vol1 Chemistry examination.
A 0.050 mol sample of oxalic acid (H₂C₂O₄, diprotic, Ka₁ = 5.6×10⁻², Ka₂ = 6.4×10⁻⁵) is dissolved in 250.0 mL of water. How many millilitres of 0.200 M NaOH are required to adjust the solution to pH = 3.00? (Assume the second dissociation is negligible at this pH.)
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About This Question
This is Waec Model Questions Vol1 2021 Chemistry Question 8. It is a objective / multiple choice question from the 2021 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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