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 31.0L of carbon dioxide at STP? Express your answer with the appropriate units. The ideal gas law PV=nRT relates pressure P, volume V, temperature T, and number of moles of a gas, n. The gas constant R equals 0.08206Latm/(Kmol) or 8.3145 J/(Kmol). The equation can be rearranged as follows to solve for n : n=RTPV This equation is useful when dealing with gaseous reactions because stoichiometric calculations involve mole ratios. compiete combusuon oi vutane is 2C4H10(g)+13O2(g)8CO2(g)+10H2O(l) At 1.00atm and 23C, what is the volume of carbon dioxide formed by the combustion of 1.00g of butane? Express your answer with the appropriate units