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The mass of 11.2 litres of a certain gas at s.t p. is 24 g. Find the gram molecular mass of the gas. |
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Answer» Mass of gas = 24 g Volume of gas = 11.6 litres 22.4 L of gas at STP = 1 mole 11.2 L of gas at STP = 11.2 / 22.4 = 0.5 moles Mass of 0.5 moles of gas =24 g Mass of 1 mole of gas or molar mass = 24/0.5 = 48 g |
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