Given an approximate wavenumber of 2000cm-1 for CN, calculate the approximate force constant for a single bond.
i used the formula v= (1/2(pi)c) * sqrt(k/u) where pi is 3.14, c is the speed of light, k is the force constant and u=mu, which is the reduced mass.
i got a value of 9.17106991*10^25 for K, and that divided by 3 for a single bond comes out to 3.057015664*10^25.
Just not sure if I used the formula correctly