access the section in your e Text. Part A A 270-mL flask contains pure helium at a pressure of 760 torr. A second flask with a volume of 495 mL contains pure argon at a pressure of 732 torr. If we connect the two flasks through a stopcock and we open the stopcock, what is the partial pressure of helium? Express the partial pressure in torr to three significant figures. Hνα ΑΣφ ? PHe = torr Part B If we connect the two flasks through a stopcock and we open the stopcock, what is the partial pressure of argon? Express the partial pressure in torr to three significant figures. | V ΑΣφ ? PAr = torr

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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.