question archive Use Hess's Law to calculate the heat of formation of C2H4 from the following data
Use Hess's Law to calculate the heat of formation of C2H4 from the following data
Subject:ChemistryPrice: Bought3
Use Hess's Law to calculate the heat of formation of C2H4 from the following data. Target Equation: C(s) + H2(g) → C2H4(g) [5 marks] [4 marks] 6. Calculate the mass of carbon in C(s) + O2(g) → CO2(g) that would have to be burned to heat 30.0 mL of water from 20.0 °C to 65.0 °C. The ?H for this reaction is -393 kJ/mol (Specific heat capacity of water is 4.18 J/g°C) C2H4(g) + 3O2(g) → 2CO2(g) + 2H2O(l) C(s) + O2(g) → CO2(g) H2(g) + 1/2 O2(g) → H2O(l) ?H = -1410 kJ/mol ?H = -393 kJ/mol ?H = -286 kJ/mol
