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    Calculating Equilibrium Constants

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    Equilibrium constants are known for the following reactions
    S(s) + (3/2) O2(g) =SO3(g)
    Ksubletterc =9.2 x 10^23
    SO3(g) = SO2(g) + (1/2)O2(g)
    Kc= 4.8 x 10^-4
    Thus for the reaction
    S(s)+O2(g) = SO2(g)

    Kc = ____________

    Please show work

    = is actually two arrows pointing opposite each other

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    Solution Preview

    Add up the 1st 2 reactions...

    S + (3/2)O2 + SO3 --> SO3 + SO2 + 1/2 O2.... (EQUATION 1)

    You can see that certain things will subtract out ...

    Solution Summary

    The solution involves calculations for equilibrium constants.