Equation: k' = k[OH- ]^n
k' and [OH-] measured / calculated
Log both sides of the equation above
log k' = log (k[OH- ]^n )
log k' = log k + n log([OH- ]
which is the same as
log k' = n log([OH- ] + log k
Which you can look at as y = mx + b
m = n, therefore slope = n, n = 1.04
calculate k after that