In life-support systems on spacecraft, carbon dioxide gas is removed from the cabin atmosphere by reacting it with solid lithium hydroxide. The chemical equation for this reaction is:
2LiOH(s)+CO2(g)→Li2CO3(s)+H2O(l) 2\text{LiOH(s)} + \text{CO}_2\text{(g)} \rightarrow \text{Li}_2\text{CO}_3\text{(s)} + \text{H}_2\text{O(l)} 2LiOH(s)+CO2(g)→Li2CO3(s)+H2O(l)Calculate the mass of carbon dioxide, in kg\text{kg}kg, that can be completely absorbed by 18 kg18\text{ kg}18 kg of lithium hydroxide.
[Relative atomic masses (ArA_rAr): H=1\text{H} = 1H=1, Li=7\text{Li} = 7Li=7, C=12\text{C} = 12C=12, O=16\text{O} = 16O=16]
80 exam-style questions on Edexcel IGCSE Chemistry Chemical formulae, equations and calculations. Each one has a worked solution and a mark scheme showing where the marks go.