A reaction with is carried out using of a reactant whose molar mass is

CHEMISTRY · Subjective · A Level · Chemistry · Energetics · Energetics

Problem

A reaction with

\Delta H = -95.4\;\text{kJ mol}^{-1}

is carried out using

3.2\;\text{g}

of a reactant whose molar mass is

64\;\text{g mol}^{-1}

. Calculate the heat

q

(in kJ) exchanged with the surroundings for this sample. (Include the sign.)