Question

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For the reaction C + 2H2 - CH4
how many grams of carbon are required to produce 10.7 moles of methane, CH4?

Use the following molar masses:
hydrogen: 1
carbon: 12

Answer 1

128.40g

Step-by-step explanation:

Grams of carbon = moles of carbon * molar mass of carbon

Grams of carbon = 10.7 moles * 12 g/mol

Answer 2

The balanced chemical equation for the reaction C + 2H2 → CH4 tells us that one mole of carbon produces one mole of methane. So, if 10.7 moles of methane are produced, then 10.7 moles of carbon are required to produce it.

To find the mass of carbon required to produce 10.7 moles of methane, we can use the molar mass of carbon (12 g/mol) and the following calculation:

Mass of carbon = Number of moles of carbon × Molar mass of carbon

Mass of carbon = 10.7 mol × 12 g/mol

Mass of carbon = 128.4 g

Therefore, 128.4 grams of carbon are required to produce 10.7 moles of methane, CH4.