Calculate the pressure (in atm) exerted by 1.00 mole of ammonia at 27 oC in a 10.00-liter container. The van der Waals constants for ammonia are: a = 4.00 L2• atm/mol2, b = 0.0400 L/mol. (The values for a and b have been rounded off to simplify the arithmetic in this problem.)

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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.