What mass of Al is required to produce 500g of AlCl3? SHOW ALL STAGES OF WORKING!! 2Al(s) + 3Cl2(g) -> 2AlCl3(s) explain how to do it as well.

Chemistry question

What mass of Al is required to produce 500g of AlCl3? SHOW ALL STAGES OF WORKING!! 2Al(s) + 3Cl2(g) -> 2AlCl3(s) explain how to do it as well.