Can someone please help me with this Chemistry problem?

Question

For the equation CH₄ + 2O₂ → CO₂ + H₂O + 803.1 kJ, how much heat will be released if 2.0 × 10¹ g of CH₄ react with sufficient O₂?

A. 883 kJ

B. 883 kJ/mol

C. 1.0 × 103 kJ

D. 1.0 × 103 kJ/mol

E. None of the Above

For this I got C, would that be correct?

Answer 1

Yes, your answer is correct.

CH₄ + 2O₂ → CO₂ + H₂O + 803.1 kJ NOT BALANCED

CH₄ + 2O₂ → CO₂ + 2H₂O + 803.1 kJ BALANCED

As written, the equation tells us that 803.1 kJ of heat is generated for every ONE mole of CH₄ that is combusted.

mols CH4 used = 2.0x101 g = 20 g x 1 mol CH4/16 g = 1.25 mols CH4

1.25 mols CH4 x 803.1 kJ/mol = 1004 kJ = 1000 kJ = 1x103 kJ (Answer C)