. A vessel with a small hole in its wall is filled with oxygento a pressure of 1.00 atm at 25°C. In a 1.00-minute period,3.25 g oxygen effuses out through the hole into a vacuum.The vessel is evacuated and filled with an unknown gas atthe same pressure and volume. In this case, 5.39 g of theunknown gas effuses in 1.00 minute. Calculate the molarmass of the unknown gas.

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Q: The root-mean-square speed of a gas at -83.62°C is 271.66 m s^-1. what is the molar mass of the…

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Q: the same barrier. The molar mass of the unknown gas is ____g/mol.

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Q: A container with a closed pinhole contains 1 mol of H2(g) and 1 mol of He(g). When the pinhole is…

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Q: Methane, CH4, effuses through a small opening in the side of a container at a rate of 1.30 x 10-8…

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Q: The rate at which argon, (Ar) effuses through pinhole is 4.5 ml/min. At what rate will the hydrogen…

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Q: 1.734×10-4 mol of an unidentified gaseous substance effuses through a tiny hole in 93.2 s. A) Under…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.