mixture of oxygen and nitrogen gases contains oxygen at a partial pressure of 279 mm Hg and nitrogen at a partial pressure of 370 mm Hg. What is the mole fraction of each gas in the mixture? XO2 =  XN2 =

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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.