What volume of oxygen at 323.0 K and a pressure of 147.4 kPa is produced by the decomposition of 139.7 g of BaO2BaO2 to BaOBaO and O2O2? Select one: a. 18.5 L b. 0.509 L c. 4.31 L d. 7.52 L

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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.