Calculate the value for the equilibrium constant for the reaction represented by

Question

Calculate the value for the equilibrium constant for the reaction represented by equation 1 using thermodynamic data. Use the data given in Table A. Table A: Thermodynamic Properties in Aqueous solution at Unit Activity and 25oC. [Note that ionic properties are based on the assignment of zero value for Hfo, Gfo, and Sfo for H+(aq). Values are for an effective [1M] , i.e., unit activities can be somewhat different from 1M concentration.] [1]

ION Hfo (kJ/mol) Gfo (kJ/mol) So (J/Kmol)
I-         -55.19           -51.57      111.3
I2          22.6            16.40       137.2
I3-        -51.5             -51.4       239.3

You will use this theoretical value later to evaluate the accuracy of your experimental value using the test suggested in your error analyses section. K_eq=a_(I_3^- )/(a_(I_2 )*a_(I^(1-) ) )

Explanation / Answer

Calculate the value for the equilibrium constant for the reaction represented by

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