Determine the mole fractions and partial pressures of CO2, CH4, and He in a sample of gas that contains 1.15 moles of CO2, 1.59 moles of CH4, and 3.91 moles of He, and in which the total pressure is 5.78 atm. ΧCO2 =   PCO2 =    ΧCH4 =    PCH4 =    ΧHe =   PHe =

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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.