Hello everyone.
I have an assignment to do for my adult learner course, I am having some difficulty with stoichiometry and calculating theoretical yields and atom economies.
I have two course work questions. The first is this:
Calculate the percentage yield and atom economy for the following reaction:
2al + 3cl2 = 2alcl3
12.8g of aluminium reacted with excess chlorine and gave 30.2g of aluminium chloride.
I have worked out how much of a mole I have of aluminium.
12.8/27= 0.47 of a mole of al
And how much of a mole of aluminium chloride I have.
30.2/133.5= 0.23 of a mole of alcl3
0.23 divided by 0.47 times 100= 48.9% theoretical yield? Am I working this out correctly?
Thanks so much for any help
Ollie