Aluminum Oxide Can Be Reduced to Aluminum Metal Using Carbon $\Delta$

Aluminum oxide can be reduced to aluminum metal using carbon, the other reaction product being carbon monoxide. Determine the enthalpy change when 12.5 g of aluminum is produced by this method. [ $\Delta$ H ^$\circ$ _f(carbon monoxide) = -110.5 kJ/mol; $\Delta$ H ^$\circ$ _f(aluminum oxide) = -1669.8 kJ/mol]

A) 310 kJ
B) 361 kJ
C) 697 kJ
D) 725 kJ
E) 1504 kJ

Correct Answer:

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