Question

If 10 moles of Fe react according to the chemical equation below how many moles of H2 would you expect to produce

Answer 1

15 moles of H2.

Step-by-step explanation:

First, let's write the chemical reaction:

`2Fe\text{ + 3H}_2SO_4\rightarrow Fe_2(SO_4)_3+3H_2.`

Now, we can find how many moles of H2 are being produced by 10 moles of Fe doing a rule of three. You can see in the chemical equation that 2 moles of Fe reacted produces 3 moles of H2, so the rule of three would look like this:

`\begin{gathered} 2\text{ moles Fe}\rightarrow3\text{ moles H}_2 \\ 10\text{ moles Fe }\rightarrow?\text{ moles H}_2 \end{gathered}`

And the calculation would be:

`10\text{ moles Fe}\cdot\frac{3\text{ moles H}_2}{2\text{ moles Fe}}=15\text{ moles H}_2.`

We will expect to produce 15 moles of H2.