Consider separate 1.0 L samples of the following gases at STP: Cl, C2H5, and Xe. Which of the following statements are true regarding these gas samples? Each Cl2 gas particle collision with the container wall is more forceful as compared to each C2H6 and Xe collision. v The C2Hs gas molecules collide with the container walls most frequently. | The Xe gas sample has the smallest average kinetic energy. The mass of the gas in each container is different. The C2H5 gas sample has the lowest density. v The Xe gas sample has the most molecules of gas present.

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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.