Question: Is the bond length in HCl the same as that in DCl? The wavenumbers of the J = 1 0 rotational transitions for H

Is the bond length in HCl the same as that in DCl? The wavenumbers of the J = 1 ← 0 rotational transitions for H35Cl and 2H35Cl are 20.8784 and 10.7840 cm−1, respectively. Accurate atomic masses are 1.007825 u and 2.0140 u for 1H and 2H, respectively. The mass of 35Cl is 34.96885 u. Based on this information alone, can you conclude that the bond lengths are the same or different in the two molecules?

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Solution The fundamental vibration frequency of HCl is given by ... View full answer

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