Waec Model Questions Vol1 2022 Chemistry Question 1
Practice objective / multiple choice question 1 from the 2022 Waec Model Questions Vol1 Chemistry examination.
A 1.00 L solution contains 0.250 mol of a weak acid HA (Ka = 1.8×10⁻⁵). To prepare a buffer of pH 5.00, how many grams of its sodium salt NaA must be added? (Molar mass of NaA = 82.03 g·mol⁻¹)
Answer Options
About This Question
This is Waec Model Questions Vol1 2022 Chemistry Question 1. It is one of the objective questions from the 2022 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.