Question

C + 2H2 -> CH4

Answer 1

Moles of methane

• Given mass/Molar Mass
• 32/16
• 2mol

2moles hydrogen required for 1 mol CH_4 production

For 2 mol CH_4

Moles of H_2=2(2)=4

Option C

Answer 2

Answer:

C) 4

Explanation:

The reaction :

• C (s) + 2H₂ (g) ⇒ CH₄ (g)

       12g      4g             16g

Hence, based on this we can say that : 2 moles of hydrogen gas are needed to produce 16g of methane.

For 32g of methane

• Number of moles of H₂ = 32/16 × 2
• Number of moles of H₂ = 4