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Homework Help: Equilibrium constant problem

  1. Oct 25, 2013 #1
    1. The problem statement, all variables and given/known data

    if 1.50 mol of each chemical species are placed in a 3.00l flask and allowed to achieve the equilibrium above, what mass of Co will be present at equilibrium?

    2. Relevant equations

    Keq= concentration of products each raised to the number of moles in equation/ concentration of reactants raised to the number of mols

    3. The attempt at a solution
    I used the ice tables and substituted the variables then used the equilibrium constant equation to determine x

    My answer came out to be 55 g but the answer on the worksheet said 13.0 g. I think the answer on the worksheet is wrong, because I double checked my answer and still didn't get it? Just wondering for a 2nd opinion from someone
  2. jcsd
  3. Oct 25, 2013 #2


    User Avatar

    Staff: Mentor

    Sigh. What is the value of the constant?
  4. Oct 25, 2013 #3
    The value of the constant is 3.59
  5. Oct 25, 2013 #4
    Your answer seems right. With that equilibrium constant, you would expect to end up with more than 1.5 moles of CO, rather than less.

  6. Oct 26, 2013 #5
    Ok thanks, I think the answer on the sheet is wrong
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