Question

Accor ding to the following reaction, how much energy is evolved during the reaction of 32.5 g B2H6 and72.5 g Cl2?

? The molar mass of B2H6 is 27.67 g/mol.B2H6(g) + 6 Cl2(g) 2 BCl3(g) + 6 HCl(g)̇H°rxn =-1396 kJ