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Exercises

Advanced Chemistry Exercises

1. Determine the number of moles of N 2O 4 needed to react completely
with 2.56 mol of N 2H 4 for the reaction:
2 N 2H 4(l) + N 2O 4(l) → 3 N 2(g) + 4 H 2O(l)

2. When the following reaction begins with 4.52 moles of N 2H 4, determine
the number of moles of N 2 produced for the reaction:
2 N 2H 4(l) + N 2O 4(l) → 3 N 2(g) + 4 H 2O(l)

3. The balanced equation for the synthesis of ammonia is:
3 H 2(g) + N 2(g) → 2 NH 3(g).

Calculate:
a. the mass in grams of NH 3 formed from the reaction of 72.0 g of N 2
b. the mass in grams of N 2 required for form 3.00 kg of NH 3

4. What are the most dangerous chemicals in your C3000 set?

5. After mixing two chemicals together, you observe your solution
bubbles, gets warm and turns litmus paper red. What do you know
about the solution already?

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