Determine the Theoretical Yield of H₂S (In Moles)if 4

Multiple Choice

Determine the theoretical yield of H₂S (in moles) if 4.0 mol Al₂S₃ and 4.0 mol H₂O are reacted according to the following balanced reaction.A possibly useful molar mass is Al₂S₃ = 150.17 g/mol.
Al₂S₃(s) + 6 H₂O(l) → 2 Al(OH) ₃(s) + 3 H₂S(g)

A) 12 mol H₂S
B) 4.0 mol H₂S
C) 18 mol H₂S
D) 6.0 mol H₂S
E) 2.0 mol H₂S