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23 February, 02:08

An equilibrium mixture of O2, SO2 and SO3 contains equal concentrations of SO2 and SO3.

Calculate the concentration of O2 if Kc = 270 for the reaction: 2 SO2 (g) + O2 (g) - 2 SO3 (0)

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  1. 23 February, 05:36
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    [O₂ (g) ] = 0.0037M

    Explanation:

    2SO₂ (g) + O₂ (g) = > 2SO₃ (g)

    Conc: [SO₂ (g) ] [O₂ (g) ] [SO₃ (g) ] and [SO₂ (g) ] = [SO₃ (g) ]

    Kc = [SO₃ (g) ]²/[O₂ (g) ][SO₂ (g) ]² = > Kc = 1/[O₂ (g) ] = 270 if [SO₂ (g) ] = [SO₃ (g) ]

    ∴ [O₂ (g) ] = (1/270) M = 0.0037M
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