Determine the mass of iodine that reacts if 1.38×103 kJof heat is emitted by the reaction.
Express your answer to three significant figures and include the appropriate units.
Titanium reacts with iodine to form titanium(III)iodide, emitting heat, via the following reaction:
2Ti(s)+3I2(g)→2TiI3(s), ΔHrxn=-839kJ