Question 4 of 36intermediate🔧 ApplyNumerical5 marks

Calculate the amount of carbon dioxide that could be produced when (i) 1 mole of carbon is burnt in air. (ii) 1 mole of carbon is burnt in 16 g of dioxygen. (iii) 2 moles of carbon are burnt in 16 g of dioxygen.

(i)
Answer

44 g of carbon dioxide

(ii)
Answer

22 g of carbon dioxide

(iii)
Answer

22 g of carbon dioxide

Explanation

The balanced chemical equation for the combustion of carbon is C(s)+O2(g)→CO2(g)\text{C}(\text{s}) + \text{O}_2(\text{g}) \rightarrow \text{CO}_2(\text{g}). According to the stoichiometric relationships, 1 mole of carbon reacts with 1 mole (32 g) of dioxygen to produce 1 mole (44 g) of carbon dioxide. In cases where the amount of dioxygen is insufficient, it acts as the limiting reagent, determining the maximum amount of product that can be formed.

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