Question

A mixture of 1.0 mole of Al and 3.0 mole of Cl₂ are allowed to react as: 

2Al_(S) + 3Cl₂ ----> 2AlCl_3(s) 

(a) Which is limiting reagent? 

(b) How many moles of AlCl₃ are formed? 

(c) Moles of excess reagent left unreacted. 

Answer 1

Mole ratio for reactants and products are 2 : 3 : 2 

(a) Thus limiting reagent is Al. 

(b) Moles of AlCl₃ formed = 1.0 

(c) Moles of excess reagent Cl₂ left unreacted =1.5