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An unknown sample of gas was put into a jar with a sample of nitrous oxide gas. The density of the gas is 1.098 g/L at 25 degree celcius when the atmospheric pressure is 756 torr. If the nitrous oxide sample required 31.8 s to effuse out the container calculate the time required for an equal amount of the unknown gas to effuse (assume the gases do not react)

Will the unknown gas be NO , Al, C2H2, HCN, Or CH2O

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