Heat Change Problem?

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Heat Change Problem?

How would you compute the heat change for the reaction of 1.24 grams of NO according to the following equation?

2NO + O2 → 2NO2 +114.14 kJ

2007-01-31 06:48:16 · 1 answers · asked by San Fran Kid 2 in Science & Mathematics ➔ Chemistry

1 answers

Atomic weights: N= 14 O = 16 NO = 30

1.24gNO x 1molNO/30gNO x 114kJ/2molNO = (1.24)(114)/(30)(2) = 2.36 7kJ

I put everything to three significant figures.

2007-01-31 07:02:03 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋