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Chemistry

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CoCl2<->CO+Cl2

Keq=7.6*10^-4 M CoCl2 is introduced in a closed container until its concentration is .890 M. What will be the concentration of Cl2 once the reaction has reached equilibrium?

  • Chemistry -

    You want to be careful with the caps key. CoCl2 is cobaltous chloride. COCl2 is phosgene, a huge difference.
    .........COCl2 ==> CO + Cl2
    I........0.890......0.....0
    C........-x.........x.....x
    E.......0.890-x.....x.....x

    Kc = (CO)(Cl2)/(COCl2)
    Substitute the E line and solve for x = (Cl2) = (CO)

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