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You must first convert kJ/mol.

So..

-237kJ x (1kJ / 2.60mol) = -91.15kJ

You then must take this and multiple by (-1),

since you cannot have a negative heat.

(-91.15kJ x -1) =

91.15kJ

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Q: How much heat is absorbed if 2.60mol of A reacts if heat of formation in -237kJmol?
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How much heat is absorbed if 2.60mol of A reacts if heat of formation in 237kJmol?

You must first convert kJ/mol. So.. -237kJ x (1kJ / 2.60mol) = -91.15kJ You then must take this and multiple by (-1), since you cannot have a negative heat. (-91.15kJ x -1) = 91.15kJ


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