HWW Item 810
Part A
Titanium reacts with iodine to form titanium(III)iodide,emitting heat.
2Ti(s)+3I2(g)→2TiI3(s)ΔHorxn = -839 kJ
Determine the masses of titanium and iodine that react if1.50×103 kJ of heat is emitted by thereaction.Express your answer to three significant figuresand include the appropriate units.
m(Ti)= (value)(unit)
m(I2)= (value)(unit)
Part B
Consider the following generic reaction: A+2B→C+3D, withΔH = 128 kJ . Determine the value of ΔH for eachof the following related reactions.
a) 3A+6B→3C+9D
ΔH = _____ kJ
b) C+3D→A+2B
ΔH = _____ kJ
c) 1/2C+3/2D→1/2A+B
ΔH = _____ kJ
