Neco Model Questions Vol1 2024 Chemistry Question 48
Practice objective / multiple choice question 48 from the 2024 Neco Model Questions Vol1 Chemistry examination.
A 10.0 g sample of a solid mixture of calcium carbonate and sodium carbonate is heated strongly so that both carbonates decompose completely: \(\mathrm{CaCO_3(s) \rightarrow CaO(s) + CO_2(g)}\) \(\mathrm{Na_2CO_3(s) \rightarrow Na_2O(s) + CO_2(g)}\) The carbon dioxide produced is collected over water at \(25^{\circ}\mathrm{C}\) and a total pressure of \(760\ \text{mmHg}\). The volume of dry \(\mathrm{CO_2}\) measured is \(2.51\ \text{L}\). Determine the mass of calcium carbonate present in the original mixture.
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About This Question
This is Neco Model Questions Vol1 2024 Chemistry Question 48. It is one of the objective questions from the 2024 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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