General Chemistry 1 Midterm - Part 4 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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7. Gases / Effusion / Problem 8
Consider the following experiment:
A Kr gas was allowed effuse through a small hole under constant pressure. The 2 L sample of Kr took 96.0 s to effuse. Another gas of unknown identity went through the same conditions. It took a 2 L sample of the unknown gas 55.5 s to effuse. Calculate the molar mass of the unknown gas.
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