Liquid oxygen was first prepared by heating potassium chlorate, KCIO3, in a closed vessel to obtain oxygen at high pressure. The oxygen was cooled until it liquefied. 2KCIO3 (s) → 2KCI(s) + 302 (g) If 165.0 g of potassium chlorate reacts in a 2.60-L vessel, which was initially evacuated, what pressure of oxygen will be attained when the temperature is finally cooled to 25°C? Use the preceding chemical equation, and ignore the volume of solid product. Pressure = atm O2

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Q: If 3.97 Mol of an ideal gad has a pressure of 3.07 atm and a volume of 34.35 L, what is the…

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Q: final pressure (

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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.