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The thermite reaction is 2Al + Fe2O3 --> 2Fe + Al2O3; H= -846.6 kJ How much...

The thermite reaction is 2Al + Fe2O3 --> 2Fe + Al2O3; H= -846.6 kJ

How much heat is produced (in kJ, include negative sign in answer) from 23.8 g of aluminum ? (assume excess iron(III) oxide).

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Answer #1

according to the reaction

54 g of aluminium react with iron(III)oxide gives-------------------------------------------- -846.6 kJ

23.8 g of aluminium react with iron(III)oxide gives------------------------------------------ ?

                                 = 23.8*846.6/54

                                  = -373.13 kJ OF ENERGY

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