Igcse Model Questions Vol1 2019 Chemistry Question 19
Practice objective / multiple choice question 19 from the 2019 Igcse Model Questions Vol1 Chemistry examination.
A 5.00 g sample of calcium carbonate is heated in a closed apparatus, producing calcium oxide and carbon dioxide: \(\mathrm{CaCO_3 \rightarrow CaO + CO_2}\). The CO₂ is collected over water at 25 °C, total pressure 750 mmHg, water vapour pressure 23.8 mmHg. If the experiment gives an 85 % yield of CaO, calculate the mass of CaO obtained.
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This is Igcse Model Questions Vol1 2019 Chemistry Question 19. It is one of the objective questions from the 2019 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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