Waec Model Questions Vol1 2020 Chemistry Question 23
Practice objective / multiple choice question 23 from the 2020 Waec Model Questions Vol1 Chemistry examination.
A 5.00 g sample of calcium carbonate is heated strongly, producing calcium oxide and carbon dioxide. The CO₂ is collected over water at 25 °C and a total pressure of 750 mmHg. The vapor pressure of water at this temperature is 23.8 mmHg. The volume of dry CO₂ collected is 1.20 L. If the mass of CaO actually recovered after the experiment is 2.10 g, calculate the percent yield of CaO.
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About This Question
This is Waec Model Questions Vol1 2020 Chemistry Question 23. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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