1. The enthalpy of combustion (Hc) of 1-methoxybutane (C5H12O) is -3391.99 kJ/mol. Using the appropriate information given below, calculate the enthalpy of formation (Hf), in kJ/mol, for 1-methoxybutane. Report your answer to two decimal places.

Hf (CO2 (g)) = -393.51 kJ/mol

Hf (H2O (l)) = -285.83 kJ/mol

Determine the mass (in g) of 1-methoxybutane produced, if H was determined to be -46.49 kJ during an experiment in which 1-methoxybutane was formed. Report your answer to three significant figures.