Answer: 0.407 moles of aluminum chloride could be produced from 11.0 g of aluminum.
Step-by-step explanation:
To calculate the moles :

According to stoichiometry :
is the limiting reagent as it limits the formation of product and
is the excess reagent.
As 2 moles of
give = 2 moles of

Thus moles of
give =
of

Thus 0.407 moles of aluminum chloride could be produced from 11.0 g of aluminum.