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