The fundamental vibrational frequency of \( ^1H^{127}I \) is 2309 cm\(^{-1}\). The force constant for this molecule (rounded off to the nearest integer) is \(\underline{\hspace{2cm}}\) N m\(^{-1}\).
Given: \( N = 6.022 \times 10^{23}, c = 3.0 \times 10^8 \, \text{m s}^{-1} \).