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One of the steps in the commercial process for converting ammonia to nitric acid is the...

One of the steps in the commercial process for converting ammonia to nitric acid is the conversion of NH3 to NO:
NH.3 (g) + (g) NO (g) H20(g)
In a certain experiment, 2.00 grams of ammonia reacts with 2.50 grams of o2. What is the limiting reagent? How many grams of NO and H2O form? How many grams of the excess reactant remain after the limiting reactant is completely consumed? Show by your calculations that the Law of Conservation by mass is not violated.

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