We have to determine the molar mass of the following gasesa ) nitrogen is N2 . Molar mass =14 + 14 = 28 g/mol so 1 mole weights 28 gb) ozone is O3 . Molar mass = 16 + 16+ 16 = 48 g/mol so 1 mole weights 48 gc ) Xe . Atomic mass = 131.3 g/mol so 1 mole weights 131.3 g

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