Question

23.4 grams of Al2(SO3)3 is yielded through a chemical reaction. How many moles is this?

Answer 1

.0796 mole

Step-by-step explanation:

Al2 (SO3)3 add the molecular weights

2 * Al = 2 * 26.982 +

3 * S = 3 * 32.06 +

9 * O = 6 * 15.999 = 294.135 gm per mole

Now... you have 23.4 grams of this substance

23.4/294.135 = .0796 mole

EDITED !