Suppose a tank of oxygen-enriched air prepared for scuba diving has a volume of 18.72 L and a pressure of 257.0 atm at 33 °C. How many grams of oxygen are present if all the other gases in the tank exert a partial pressure of 135.0 atm? m(O2) = Save for Later Attempts: 0 of 2 used Submit Answer

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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.