The lowest energy transition (J=0 --> J=1) in teh pure rotational spectrum of 12C16O occures ar 3.8026 cm-1. Calculate the rotational constant, B in Joules (1cm-1 = 100hc = 1.987*10-23 J)

Which of the following transitions are allowed by selection rules?  Plesase in each case explain the answer by step. (1) 1S0 → 3P0 (2)  3D3 → 4D1/2 (3) 3S3 →  3P1 (4) 3G3 → 3G4 (5) 2F5/2 → 2P1/2

Please don't provide handwriting solution

List all possible electronic transitions and describe why they are important and what instrument is used to identify these electronic transitions (i) CH4 (ii) CH3COCH3 (iii) CH3Br (iv) CH3CO

79 91 -1 The rotational spectrum of Br Br has lines 0.154 cm apart. Each line corresponds to a transition between adjacent rotational energy -10 levels. Calculate the bond length (in Å, where 1A = 10 m). Select one: О а. 1.61 O b. 0.228 О с. 2.28 O d. 0.161

Infrared absorption by 1H127I gives rise to an R branch from v = 0. What is the wavenumber of the line originating from the rotational state with J = 2? Hint: Use data from Table 11C.1.

The vibrational transtion from v=0 to v=1 in CO occured at wavenumber= 2143.4 cm-1 calculate the force constant of CO

▼ ▼ Part A In the rotational spectrum of H³5Cl (I= 2.65 x 10-47 kg m²), the transition corresponding to the J = 4 to J = 5 transition is the most intense. At what temperature was the spectrum obtained? Express the temperature in kelvins to three significant figures. ΠΫΠΙ ΑΣΦ T = Submit Part B J= Request Answer At 1000. K, which rotational transition of H³5 Cl would you expect to demonstrate the greatest intensity? Express your answer as an integer. V—| ΑΣΦ Submit Request Answer K ?

What is the difference in population of 13C spins between the upper and lower states in a magnetic field at 2T and 300K?