Question

the volume of co2 that can be obtained at STP from 60grams of pure of MgCO3 is?

Answer 1

1 mole of mgco3 produces 1 mole of co2                                       1 mole of mg co3contain 84 g                                             therefore 60g of mgco3contain 0.71moles                  1 mole of co2  will contain 31 gram   therefore 31 gram of co2 will obtain