Question

PLEASE HELP!!

For the reaction C + 2H₂ → CH4, how many grams of carbon are required to produce 20 moles of
methane, CH4?

Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer
as 4.0

Use the following molar masses. If you do not use these masses, the computer will mark your
answer incorrect.:

mola masses:

Hydrogen: 1
Carbon: 12

Answer 1

360.0 grams of Carbon are required to produce 20 moles of Methane, CH4.

Step-by-step explanation:

In order to produce 20 moles of Methane, CH4, the reaction is C + 2H₂ → CH4. This means that for every one mole of Carbon, 2 moles of Hydrogen are used. Since Carbon has a molar mass of 12 while Hydrogen has a molar mass of 1, it follows that 12 grams of Carbon and 2 grams of Hydrogen are required for one mole of Methane. Therefore, with 20 moles of Methane, you would need 240 grams of Hydrogen and 360 grams of Carbon for the reaction.