Given the following equation: 8 Fe + S8 ---> 8 FeS 6. How many moles of iron are needed to react with 16.0 moles of sulfur?

Question

need help

Answer 1

As with any stoichiometry problem, we need to first check for whether the chemical equation is balanced.

Here, it is:

8Fe +S₈ --------> 8FeS

OK, next we need to decide what we know and what we need to figure out.

We know that we have 16.0 moles of sulfur. We need to know how many moles of iron will react with it.

So we are going to go from moles of sulfur to moles of iron.

16 mol S x 8 mol Fe / 1 mol S = 128 mol Fe