1. The problem statement, all variables and given/known data The J=0 to J=1 transition fro 12C16O carbon monoxide occurs at 1.153x105 MHz. Calculate the value of the bond length in CO. 2. Relevant equations 2B = h/(4π2I) μ = m1*m2/(m1+m2) I = μr2 3. The attempt at a solution I = 6.61x10-34/ (4*π2*1.153x108) = 1.45x10-43 kg m2 μ = 12.01*16.00/(12.01+16.00) *1.661x10-27 = 1.14x10-26kg r = √(I/μ) = √(1.45x10-43/1.14x10-26) = 2.52x10-9 m or 2520 pm, which is significantly larger than the observed value of 113 pm. Does anyone see where I went wrong? Thanks!