General Chemistry 1 Midterm - Part 2 of 4
SAMPLE
Please be aware that you practice a sample exam set, which means that it’s mimicking a real exam. In order to have more accurate experience:
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2. Atoms & Elements / Law of Conservation of Mass / Problem 3
At equilibrium, the following decomposition reaction has 2.38 g NaNO3, 3.92 g NaNO2, and 1.29 g O2.
2 NaNO3 (s) → 2 NaNO2 (s) + O2 (g)
How much in grams of NaNO3 is there originally if it is the only substance at the start of the reaction?
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