Example discussed in video (taken from SQA 2016 National 5 Past Paper).
Have a go at the following example once you’re confident with the method discussed in the video:
MgCO3 + 2 HCl -> MgCl2 + H2O + CO2
1 mole of carbon dioxide has a volume of 24 litres.
Calculate the volume of carbon dioxide produced when 42.15g of magnesium carbonate reacts with excess hydrochloric acid.