Question
Methane reacts with oxygen to produce carbon dioxide, water and heat. If the percent yield of the reaction is 90.0%, how many grams of methane must be burned to produce 150.0 kJ of energy?
___ CH4 (g)+ ___ O2 (g) → ___ CO2 (g) + ___ H2O(g) + 802 kJ
___ CH4 (g)+ ___ O2 (g) → ___ CO2 (g) + ___ H2O(g) + 802 kJ
Answers
CH4(g)+ 2O2(g) → CO2(g) + 2H2O(g) + 802 kJ
You obtain 802 kJ for every 16 g CH4 so
802 kJ/mol x (g/16) = 150 kJ.
Solve for g
You obtain 802 kJ for every 16 g CH4 so
802 kJ/mol x (g/16) = 150 kJ.
Solve for g
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