Three glass bulbs, joined by closed stopcocks, have the following volumes and initial pressures of the specified gases. Bulb A: 100. mL of Ne(g) at 190. torr Bulb B: 200. mL of He(g) at 1.00 atm Bulb C: 500. mL of H2(g) at 50.663 kPa A) After both stopcocks are opened and the gases allowed to diffuse throughout, what will be the final total pressure? (The ambient temperature is constant.) Ptotal = B) What is the partial pressure of He(g)? PHe = C) What is the mole fraction of H2(g)? ΧH2 =

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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.