Aluminum reacts with chlorine gas according to the following equation:

2 Al (s) + 3 Cl2 (g) → 2 AlCl3 (s)

How many moles of Cl2 are required to react with each mole of aluminum?

a. 1

b. 0.5

c. 1.5

d. 2.5

e. 2

For 1 moles Aluminium we need 3.0 / 2 = 1.5 moles Chlorine gas (Cl2)

Option C is correct

Explanation:

Step 1: data given

Aluminium = Al (s)

Chlorine gas = Cl2 (g)

Step 2: The balanced equation

2 Al (s) + 3 Cl2 (g) → 2 AlCl3 (s)

Step 3: Calculate moles Cl2

For 2 moles Aluminium we need 3 moles chlorine gas to react, to product 2 moles AlCl3

For 1 moles Aluminium we need 3.0 / 2 = 1.5 moles Chlorine gas (Cl2)

Option C is correct