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Answer chemistry homework ?
1. The average molecular speed in a sample of gas at a certain temperature is 591 m/s.
The average molecular speed in a sample of gas is _______ m/s at the same temperature.
2.A sample of gas is observed to effuse through a pourous barrier in 5.41 minutes. Under the same conditions, the same number of moles of an unknown gas requires 9.71 minutes to effuse through the same barrier.
The molar mass of the unknown gas is
______ g/mol.
Be the first to answer this question.