## Chemistry and Chemical Reactivity (9th Edition)

$-10.05\ kJ/g$
Energy: $q+1200\ g\times 4.184\ J/K.g\times 1.32\ K+691\ J/K\times 1.32\ K=0$ $q=-7.540\ kJ$ $-7.540\ kJ/0.750\ g=-10.05\ kJ/g$