Bomb Calorimeter Question

Question

When 6.10 g of urea, (NH2 )2 CO(s) , burns to produce CO2(g) , N2(g) , and H2O(l) ,

67.8 kJ of heat energy are released in a bomb calorimeter. What is the energy released in the burning of one mole of urea? Using this, determine the enthalpy of formation of urea

Answer 1

There is a chart in your book most likely, with enthalpy's of combustion. You can use these to determine ΔH°.

Use: ΔH_rxn=∑ΔH°_f(products)−∑ΔH_f°(Reactants)

Use the chart or the internet to lookup values for each and sum products and reactants separate before taking the difference