In your handout you
will note that Equation 18 closely resembles the equation for a line:
y = mx + b
Then one can plot y vs. x and determine the slope, where:
y = A x =
A ([Fe*] +
[SCN*])
[Fe*] [SCN*] [Fe*] [SCN*]
The slope of
the resulting straight line is Keq.
m = Keq