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2 October, 19:59

What mass will 33.6 L of oxygen gas (O2) have at STP?

16 g

32 g

34 g

48 g

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Answers (1)
  1. 2 October, 20:26
    0
    48 grams of O₂ occupy 33.6L at STP

    Explanation:

    Let's apply Ideal Gases Law to this situation:

    STP = Standard conditions of T° and pressure

    T° = 273K

    Pressure = 1 atm

    P. V = n. R. T

    1 atm. 33.6L = n. 0.082. 273K

    (1 atm. 33.6L) / (0.082. 273K) = n

    1,50 moles = n

    Now, we must find out the mass of O₂ with the molar mass

    Molar mass. moles = Mass

    32 g/m. 1.5 moles = 48 g
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