Determine the mass and volume of 3.5 mol of ammonia.

The molar mass of ammonia is 17 g / mol. m NH3 = 3.5 mol * 17 = 59.5 g. The molar volume of any gas at 0oC and 760 mm. rt. Art. (n.o.) is equal to 22.4 liters. Volume NH3 (n.o.) = 3.5 mol * 22.4 l / mol = 78.75 l.

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