Question

Based on this reaction, how many moles of H2 can be obtained starting with 6 mol CH4? 

Answer 1

To determine how many moles of H2 can be obtained from 6 moles of CH4, we first need the balanced chemical equation for the reaction in which methane (CH4) can produce hydrogen gas (H2).

A common reaction involving methane is its reforming with water to produce hydrogen and carbon dioxide, given by the equation:

\[ \text{CH}_4 + \text{H}_2\text{O} \rightarrow \text{CO}_2 + 2\text{H}_2 \]

From this balanced equation, we see that 1 mole of CH4 produces 2 moles of H2.

Now, if we start with 6 moles of CH4:

\[
6 \, \text{mol CH}_4 \times \frac{2 \, \text{mol H}_2}{1 \, \text{mol CH}_4} = 12 \, \text{mol H}_2
\]

Therefore, starting with 6 moles of CH4, you can obtain **12 moles of H2**.