Answer to Question #66239 in General Chemistry for Chris

Question

Stoichiometric Relationships with Gases:

Part A
When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction
CaCO3(s)→CaO(s)+CO2(g)
What is the mass of calcium carbonate needed to produce 37.0 L of carbon dioxide at STP?
Express your answer with the appropriate units.

Part B
Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is
2C4H10(g)+13O2(g)→8CO2(g)+10H2O(l)
At 1.00 atm and 23 ∘C, what is the volume of carbon dioxide formed by the combustion of 2.20 g of butane?
Express your answer with the appropriate units.