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 a objective / multiple choice question from the 2020 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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