MCAT Question A Day - 2/16/14
The heat of combustion of gaseous ammonia, NH3(g), is 81 kcal/mole. How much heat is released in the reaction of 34 grams of ammonia with excess oxygen?
A. 40.5 kcal
B. 60.3 kcal
C. 75.8 kcal
D. 81 kcal
E. 162 kcal
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