When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction



How many grams of calcium carbonate are needed to produce 49.0 of carbon dioxide at STP?

2 answers

balance the equation

CaCO3>> CaO + CO2

so for every mole of CO2, you need one mole of calcium carbonate.

How many moles of CO2 is 49grams?
111.3636gm of CaCo3