Consider the following reaction for the combustion of octane, C8H18: 2C3 H18 (1) + 2502(9) → 16CO2 (9) + 18H2O(1) What volume of oxygen gas at STP would be needed for the complete combustion of 16.6 g of octane? Volume LO2 %3D

To the nearest 0.1 g, how many grams of a candle wax from a different brand of candle can be burned in 5-gallon container sealed with air?  Assumptions (may or may not be needed): Complete combustion to CO2 and H2O; Candle wax reacts in a ratio of 1 mol wax: 40 moles O2; MW (wax) = 370 g/mol, Air = 21% oxygen, R= 0.082 L.atm.K-1.mol-1, 1 gallon = 3.785 L, T=278 K, P = 1 atm

determine 1) the limiting reagent, 2) the moles of each reactant left over, and 3) volume (in L) of any gaseous products at STP.        Combustion of 9.112 X 1023 molecules of methane (CH4) with 75.0 L of O2 at 1.0 atm and 299.15 K (assume any water produced is liquid).

What is the mass in grams of Al that were reacted with excess HCl if 3.46 L of hydrogen gas were collected at STP in the following reaction? 2 Al (s) + 6 HCl (aq) = AlCl3 (aq) + 3H2 (g)