# Chemistry

Methane burns with oxygen to produce carbon dioxide and water as a gas. The balanced thermochemical equation is

Ch4(g) + 2)2(g) ---> CO2(g) + 2H2O(g)
H = -802kJ
How much methane, in grams, must be burned to release 544 kJ of heat?

My answer:
544/802 = 0.678
0.678*16= 10.848g CH4

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2. 34
asked by Is my right correct?
1. Your right is probably correct -- unless you're left-handed.

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posted by Ms. Sue
2. thermochemical equation:
CH4(g) + 2O2(g) ---> CO2(g) + 2H2O(g)

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posted by Wrote wrong thermochemical equation
3. My calculator gives me 10.85 which I would round to 10.8 to three significan figures. Your set up is correct.

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posted by DrBob222

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