Question

Can someone help me understand how to solve mole problems in chemistry?

Answer 1

I can if you give man example I'll show you how to do it.

Answer 2

I start the reaction below with 1.5g of Al, how many moles of Cl can I make" (Al + Cl2 ➡ NaCl)

First thing to do is find out what the amu of Al is.
You can find that on a periodic table. 26.98grams per mole
1.5g Al x $\frac{1 mole Al}{26.98g Al}$ = 0.05559673832 = 0.056 moles of Al
Now ratio the moles.
0.056 moles Al x $\frac{1 mole Cl}{1 mole Al}$ = 0.056 moles of Cl
The answer is 0.056 moles of Cl