Waec Model Questions Vol1 2023 Chemistry Question 45
Practice objective / multiple choice question 45 from the 2023 Waec Model Questions Vol1 Chemistry examination.
A 45.0 g sample of a mixture containing calcium carbonate (CaCO₃) and magnesium carbonate (MgCO₃) is treated with excess HCl. The reaction produces 22.0 g of CO₂ gas measured at 25 °C and 1.00 atm. Assuming complete reaction, calculate the mass percent of CaCO₃ in the original mixture.
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About This Question
This is Waec Model Questions Vol1 2023 Chemistry Question 45. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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