Consider the following chemical reaction carried out under constant pressure:
2 ZnS (s) + 3 02 (8)→2 ZnO (g) +2 SO2 (8), AHrxn= -883 kJ
..mol
Calculate the theoretical maximum heat of the reaction (in kJ) if 35.28 g of zinc sulfide (ZnS)
reacts with 12.93 g of oxygen (O2). Molar masses (MM) are given below.
MM(ZNS) = 97.456-
MM(O2) = 31.9988
g
mol
g
mol
Report your answer to four significant figures without the unit and with the correct sign (+).
Example: -100.0
