A 1.056 sample of limestone produces 284 mL of CO2 @STP. what is the mass % of CaCO3 is in the original sample?

a sample of limestone and other solid materials is heated and the limestone decomposes to give calcium oxide and carbon dioxide: CaCO3 ----> CaO + CO2 a 1.506 g sample of limestone containing material produces 284 mL of CO2 at STP. what is the mass percent of CaCO3 is in the original sample? PLEASE HELP... show more a sample of limestone and other solid materials is heated and the limestone decomposes to give calcium oxide and carbon dioxide:
CaCO3 ----> CaO + CO2

a 1.506 g sample of limestone containing material produces 284 mL of CO2 at STP. what is the mass percent of CaCO3 is in the original sample?
PLEASE HELP
Please show work, I have been having a really hard time with this. Thanks
5 answers 5