Question

How many moles of aluminum metal are needed to produce 3.33 moles of aluminum chloride?

Answer 1

could someone show me how to do it

Answer 2

@Destinymasha

Answer 3

Do you know the equation for the reaction or no?

Answer 4

no I totally don't even no where to start

Answer 5

2Al + 3Cl2 -> 2AlCl3
The numbers in front of the substances are mole ratios. So for every 2 moles of Aluminum there are 3 moles of Cl2. And for every 2 moles of Aluminum there are 2 moles of AlCl3. Just put in 3.33 in front of the AlCl3, and because the mole ratio for Al to AlCl3 is 1:1
Therefore because there are 3.33 moles of AlCl3, that means there must be 3.33 moles of Al as well.

Answer 6

Sorry it took so long. I went through the steps to find moles of Cl2 and then went back and realized it asked for aluminum xD

Answer 7

ok its cool bro but is that for every one

Answer 8

For every one what?

Answer 9

how did u get that equation

Answer 10

2Al + 3Cl2 -> 2AlCl3
Well you can't get Aluminum Chloride (2AlCl3) without 2Al and 3Cl2.
Think of it this way. You know about the distributive property in math? Where you multiply the number outside of the parentheses by the number/s inside?
Al is the same as Al1.
2(Al1) + 3(Cl2) -> 2(Al1Cl3)
Al2 + Cl6 -> Al2Cl6
It wouldn't work as Al + Cl3 -> AlCl3 because Cl3 does not exist in the natural world, only Cl2. But when it's in a substance like AlCl3, it does exist. It's weird, I know.

Answer 11

so I just combine the 2 to get my answer

Answer 12

What do you mean?

Answer 13

do you combine the two equations

Answer 14

No, you don't. Usually they will give you the equation with the question, unless earlier in the year they expected you to memorize a bunch of chemical equations.

Answer 15

ok thank u so much for ur help man uve been very helpful all day and I appreciate it