11. In the presence of a catalyst, potassium chlorate decomposes and provides a very simple way to generate oxygen via the following decomposition reaction: 2KCIO;(s) → 302(g) + 2KCI(s) How many grams of potassium chlorate are needed to produce 38.2 L of oxygen gas at a pressure of 2.00 atm at a temperature of 310 K? 10.7 g b. 245 g 157 g d. 423 g e. 61.7 g а. с.

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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.