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5 January, 14:53

6. A gas mixture has partial pressure of 120 torr N2, 350 torr Ar, and 480 torr SF6. What is the mole fraction of sulfur hexafluoride in the mixture?

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  1. 5 January, 15:07
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    The mole fraction of SF6 = 0.505

    Explanation:

    Step 1: Data given

    A gas mixture has partial pressure of:

    120 torr N2

    350 torr Ar

    480 torr SF6

    Step 2: Calculate the total pressure

    Total pressure = P (N2) + P (Ar) + P (SF6)

    Total pressure = 120 + 350 + 480 = 950 torr

    Step 3: Calculate the mole fraction

    Mole fraction = Partial pressure / total pressure

    Mole fraction SF6 = 480 torr / 950 torr

    Mole fraction SF6 = 0.505

    The mole fraction of SF6 = 0.505
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