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