Question

The vol. Of CO2 at STP obtained by heating 1 gram of CaCO3 will be?
Please show your calculation with answer

Answer 1

1 gram of CaCO3 indicates 0.01 moles of it.

                  CaCO3  ------------------> CaO  +  CO2

1mole of CaCO3 gives 1mole of CO2 on heating.

so, 0.01 moles of CaCO3 gives 0.01moles of CO2.

1mole of CO2 means 22.4litres of it,

thus 0.01 moles of CO2 indicates 0.224litres = 224millilitres