The oxidation of sulfur dioxide to sulfur trioxide is an important reaction. At 1000K, the value of Kc is 3.6 x 10^-3. What is [SO3] at equilibrium when the reaction vessel is maintained at 1000K.

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  1. ..............2SO2 + O2 ==> 2SO3
    How much SO2 to start?

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  2. Whoops forgot that part of the question:

    A closed flask originally contains 1.7 mol/L SO2 and O2.

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  3. ...............2SO2 + O2 ==> 2SO3
    initial........1.7 M..1.7M...0

    Substitute the equilibrium values from the ICE chart above into the Kc expression for the reaction and solve for x. 2x is what you want.

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