Space vehicles use solid lithium hydroxide to remove exhaled carbon dioxide according to the equation: #2LiOH+CO_2 ->Li_2CO_3+H_2O#. What is the mass of carbon dioxide removed if the space vehicle carries 42.0 mol #LiOH#?
The reaction stoichiometry clearly indicates that
From the reaction clearly 2 moles of lithium salt are required for the removal of 1 mole of carbon dioxide gas. Of course this molar quantity represents a precise mass.
Mass of carbon dioxide removed: