Octane has a density of 0.692 g/mL at 20 ∘C. How many grams of O2 are required to burn 19.0 gal of C8H18?

For the same reaction: ▲Hræn C4H10 (1) + O2(g) → 4CO2(g) + 5H₂O(g) AHran = −2658 kJ/mol 13 If 1500 kJ of heat was released, how many grams of water was generated?

Given the following equations, find the AHºf of one mol of HCI from its elements. Show the balanced chemical equation for the formation of HCl from H2 and Cl2. Target Equation: A) N2 (g) + 3 H2 (g) → 2 NH3 (g) AH°rxn = -91.8 kJ B) N2 (g) + 4 H2 (g) + Cl2 (g) → 2 NHẠCI (s) AH°, rxn = -628.8 kJ C) NH3 (g) + HCI (g) → NHẠCI (s) AH°rxn = -176.2 kJ

C2​H5​OH(l)+O2​(g) --> CO2​(g)+H2​O(l), ΔHrxn​=−1418 KJ/ mol How many grams of CO2​ were produced if the reaction released 967 kJ of heat?