Homework Help: chemistry

Posted by lo on Saturday, June 11, 2011 at 10:50pm.

The enthalpy of combustion of carbon to carbon dioxide is -394 kJ according to the equation: C (s) + O2 (g) --> CO2 (g) How many kJ of heat are released when 24.0 g of carbon are burned in an excess of oxygen

chemistry - DrBob222, Sunday, June 12, 2011 at 12:12am
394 kJ heat released by burning 12 g C; therefore, burning 24 g will release
394 x (24/12) = ?? kJ.

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