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 XXXXXXXXXXL?atm/(K?mol) or XXXXXXXXXXJ/(K?mol). The equation can be...

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 0.08206 L?atm/(K?mol) or 8.3145 J/(K?mol). The equation can be rearranged as follows to solve for n: n=PV/RT This equation is useful when dealing with gaseous reactions because stoichiometric calculations involve mole ratios. 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 79.0L of carbon dioxide at STP? 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 2.60g of butane?