Why is it important to use a deuterated solvent? Expensive solvents work best with NMR NMR uses least of this solvent So the spectrometer can lock onto the sample to prevent the spectrum from drifting during aquisition They dissolve polymer the fastest TRUE ANSWER : ? YOUR ANSWER : ?
What is used to cool the superconducting coil? Hydrogen Ice Liquid helium Dry ice TRUE ANSWER : ? YOUR ANSWER : ?
All hydrogen atoms are attached to carbon have the same resonance frequency resonate at about the same frequency as carbon resonate at different frequencies depending on their environment. TRUE ANSWER : ? YOUR ANSWER : ?
When placed in a magnetic field, all the random spins of the nuclei reverse direction align with the magnetic field stop rotate to 90° away from the induced field TRUE ANSWER : ? YOUR ANSWER : ?
Better understanding of the nuclei is possible, with the help of frequencies ranges with the help of a mathematical translator called the fourier transfer algorithm with the help of wavelength spectrum None of these TRUE ANSWER : ? YOUR ANSWER : ?
What is shielding in NMR? Putting metal around an Rf source When the magnetic moment of an atom blocks the full induced magnetic field from surrounding nuclei Blocking parts of a molecule from Rf radiation Using a curved piece of metal to block an opponents attack TRUE ANSWER : ? YOUR ANSWER : ?
Coupling causes the peaks in 1H NMR spectra to be split into multiple peaks equal to the number of hydrogen on surrounding atoms, plus one multiple peaks equal to the number of hydrogens on surrounding atoms multiple peaks equal to the number of surrounding carbon atoms two peaks TRUE ANSWER : ? YOUR ANSWER : ?