Density of a gas is at 300 kelvin and 210 torr is 0.4 34 gram per litre what is its molar mass
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density (d) = MP / RT where M is molar mass, P is pressure, R is universal gas constant, T is temperature we're finding M, so: M = pRT / P Given: d = 0.434 P = 210 torr T = 300 R for torr = 62.363 M = (0.434 * 300 * 62.363) / 210 M = 38.67 Molar mass = 38.67 g/mole.
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