Question

For the reaction C + 2H2 → CH4, how many grams of hydrogen are required to produce 4.1 moles of

methane, CH4

Answer 1

Step-by-step explanation:

Start by determining the mole ratio of CH4 and H2; it can be on these form and use the appropriate ratio depending on your desired unit;

1molCH42molH2

or

2molH21molCH4

Once known, multiply the value to the mole of CH4 as provided in the problem to find the mole of H2;

0.6 mol CH4 x## ?

Then, find the molar mass of H2 to use to find the mass of H2 needed to produce CH4.

The answer is 2.4 grams of H2