Calculate the total pressure of a mixture of 0.0200 mol of helium, He, and 0.0300 mol of hydrogen, H, in a 2.50-L flask at 10°C. Assume ideal gas behavior. (R = 0.0821 atm.L/mol.K) A) 0.279 atm B) 0.372 atm C) 0.465 atm D) 0.558 atm E) 0.651 atm

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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.