Determining Using Heats of Formation: Balance the following equations and determine the ∆H enthalpy change of each using the heats of formation table. C2H6 + O2 CO2 + H2O(l) → Mg(OH)2 + NH4Cl MgCl2 + NH3 (g) + H2O(l) → Fe2O3 + CO Fe + CO2 → NH3 (g) + O2 NO2 + H2O(g) → The combustion of octane (C8H18) Assume all products to be in the gaseous state. – The reaction of sodium metal with liquid water. The decomposition of potassium chlorate. Given the reaction: Ba(OH)2 + 2 NH4Cl BaCl2 + 2 NH3 (g) + 2 H2O(l) → Calculate the change in enthalpy for the reaction the heats of formation. Is this reaction endothermic or exothermic? __________________
Determining ∆H Using Heats of Formation: Balance the following equations and determine the enthalpy change of each using the heats of formation table. C2H6 + O2 → CO2 + H2O(l) Mg(OH)2 + NH4Cl → MgCl2 + NH3 (g) + H2O(l) Fe2O3 + CO → Fe + CO2 NH3 (g) + O2 → NO2 + H2O(g) The combustion of octane (C8H18) – Assume all products to be in the gaseous state. The reaction of sodium metal with liquid water. The decomposition of potassium chlorate. Given the reaction: Ba(OH)2 + 2 NH4Cl → BaCl2 + 2 NH3 (g) + 2 H2O(l) Calculate the change in enthalpy for the reaction the heats of formation. Is this reaction endothermic or exothermic? __________________
Stoichiometry%20Packet%202013-2014.docx