Neco 2022 Chemistry Question 10
Practice objective / multiple choice question 10 from the 2022 Neco Chemistry examination.
A 5.00\,g sample of a solid mixture containing calcium carbonate (CaCO_{3}) and magnesium carbonate (MgCO_{3}) is heated until complete decomposition: CaCO_{3} \rightarrow CaO + CO_{2} and MgCO_{3} \rightarrow MgO + CO_{2}. The volume of CO_{2} collected over the solid at 298\,K and 1\,atm is 1.30\,L. Determine the mass percent of CaCO_{3} in the original mixture.
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About This Question
This is Neco 2022 Chemistry Question 10. It is one of the objective questions from the 2022 Neco Chemistry examination.
Difficulty level: Medium .
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