(Solved): A chemist measures the enthalpy change \( \Delta H \) during the following reaction: \[ 2 \mathrm{ ...

A chemist measures the enthalpy change \( \Delta H \) during the following reaction: \[ 2 \mathrm{HNO}_{3}(I)+\mathrm{Mg}(s) \rightarrow \mathrm{Mg}\left(\mathrm{NO}_{3}\right)_{2}(s)+\mathrm{H}_{2}(g) \quad \Delta H=-443 . \mathrm{kJ} \] Use this information to complete the table below. Round each of your answers to the nearest \( \mathrm{kJ} / \mathrm{mol} \).