Question

What is the minimum volume of carbon dioxide at STP required to completely convert 1 mole of calcium oxide to calcium carbonate ?

Answer 1

Well, look at the stoichiometric equation....

`CaO(s) + CO_2(g) rarr CaCO_3(s)`

Explanation:

So that is a `1:1` stoichiometry....however, let us make the reaction a little bit more realistic....

`Ca(OH)_2(aq) + CO_2(g) rarr CaCO_3(s)darr + H_2O(l)`

Now the molar volume at `"STP"` is `22.4*dm^3`...depending on your syllabus...and this is the volume of carbon dioxide gas we need AT MINIMUM..