The combustion of hexane is given by the following reaction.

$\displaystyle {2}\text{C}_{{6}}\text{H}_{{{14}}}+{19}\text{O}_{{2}}\to{12}\text{CO}_{{2}}+{14}\text{H}_{{2}}\text{O}$

The enthalpy of reaction is −4163.0 kJ/mol. How much energy (in joules) will be released if 93.46 grams of hexane is burned. (Molar mass of hexane = 86.20 g/mol). Record your answer in scientific notation using 3 significant figures.