The 1H resonance from TMS is found to occur at 500.130 000 MHz. What is the chemical shift (on the δ scale) of a peak at 500.132 500 MHz?

The chemical shift of the CH3 protons in acetaldehyde (ethanal) is δ = 2.20 and that of the CHO proton is 9.80. What is the difference in local magnetic field between the two regions of the molecule when the applied field is (a) 1.2 T, (b) 5.0 T?

For the isomers of C5H10:  (a) find # signals, chem shift ranges, integration, splitting (b) match the isomer to the spectrum

What are the differences between atomic and molecuar absorption spectroscopies?

Calculate the exact resonance frequency for the two signals of 1,3-dichloropropane B = 3.75 Cl-C- C-C- B JAB=6.2 Hz A = 2.20 TMS 90 Hz, ア 6 5 4 2 1 O ô ppm I-0-IM I-U-IA I-y-IB

how can i get a no. of rotational modes of N2 no. of vibration modes of N2 no. of microwave active modes of N2 no. of infrared active modes of N2

(a) Calculate the energy difference between the two spin states of 1H and of 13C in a magnetic field of 6.8 T. 1H 4.0 1.19e-25 X J 13C 4.0 J (b) What is the precession frequency of a 1H nucleus at this magnetic field? Of a 13C nucleus? 1H 4.0 290 MHz 13C 4.0 73 MHz (c) At what magnetic field do protons precess at a frequency of 300. MHz? 4.0 7.04 T