Titanium reacts with iodine to form titanium(III) iodide, emitting heat, via the following reaction: 2Ti(s)+3I2(g)→2TiI3(s),ΔHorxn=−839k J Part A Determine the mass of titanium that reacts if 1.56×103 kJ of heat is emitted by the reaction.

178 grams

Explanation:

The balanced chemical reaction is

According to stoichiometry :

2 moles of titanium releases heat = -839 kJ

Thus if 839 kJ of heat is released by = 2 moles of titanium

kJ of heat is released by = moles of titanium

Mass of titanium used =

The mass of titanium that reacts if kJ of heat is emitted by the reaction is 178 grams