A sample of gas was contained in a 245 mL flask at a temperature of 23.5 °C and the pressure was found to be 48.5 mm Hg. The gas was immersed into a cold flask with a volume of 68 mL. What is the pressure of the gas in the smaller flask at a 19 °C temperature.

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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.