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In thermodynamics we spend a considerable amount of time determining the energetics of reactions that are...

  1. In thermodynamics we spend a considerable amount of time determining the energetics of reactions that are at “standard conditions” of concentration/pressure. Standard conditions of concentration are exactly 1 M for all aqueous reactants or products and exactly 1 atm pressure for all gaseous reactants or products.
    Answer the following questions assuming we begin (QI) with standard conditions for all reactants and products for your FeSCN2+ equilibrium system.

    1. Calculate QI under standard conditions of concentration for the FeSCN2+ equilibrium.

    2. Is this system at equilibrium? (Compare QI to your average Keq)

    3. In what direction (if any) will a net reaction take place (fwd or rev)?

    4. Use a reaction table to find the equilibrium concentrations of reactants and products if we begin at standard conditions. Note, to solve for final concentrations you will need to use a quadratic equation or the SOLVE function of your TI calculator. Use your average Keq in the calculation. Our Keq is 112.3

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