Neco Model Questions Vol1 2017 Chemistry Question 22
Practice objective / multiple choice question 22 from the 2017 Neco Model Questions Vol1 Chemistry examination.
An evacuated 10.0 L container at 298 K is heated with solid calcium carbonate. The decomposition of \(\mathrm{CaCO_3}\) produces \(\mathrm{CO_2}\), raising the pressure inside the container to 0.80 atm. The \(\mathrm{CO_2}\) is then allowed to react with excess magnesium metal according to \(\mathrm{CO_2 + 2\,Mg \rightarrow 2\,MgO + C}\). If 2.00 g of \(\mathrm{MgO}\) is obtained, calculate the mass of \(\mathrm{CaCO_3}\) that was originally present.
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About This Question
This is Neco Model Questions Vol1 2017 Chemistry Question 22. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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