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Chemical formulae, equations and calculations

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Question 50

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)→Li2​CO3​(s)+H2​O(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]

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Chemical formulae, equations and calculations Questions

  1. IGCSE
  2. /Chemistry
  3. /Chemical formulae, equations and calculations