As mentioned in lecture, MRI (magnetic resonance imaging) works with the exact same principles as NMR and is superior to other imaging techniques such as CT or PET scan as these imaging techniques use ioning radiation and MRIS do not. One thing I hope we all retain 5 or 10 years from now is helping our friends and family understand how this works. Using the figure provided, provide a basic explanation as to how this technology works. Utilize all parts of the figure (A-E) and include the following terms: External magnetic field, Free induced decay, Fourier transform, Proton spin, Radio frequency, Spectrum. Protons In the MRI scanner A Protons in the Body RF pulse B0 magnetic field No magnetic field FT 50 Hz frequency

Which of the five dyes tested in this experiment has the strongest ability to absorb light? How do you know?

(give clear handwritten solution) Select wavelengths ranges in nano meters is associated with UV spectroscopy?

P Please don't provide the handwriting solution

Please help

After 20 scans, the signal to noise (S/N) ratio was 3.43. How many scans would be required to attain a S/N ratio of 12.5?

In the interference experiment preformed, sodium ascorbate powder was added to water to prepare the stock concentration of the interfering substance. On the package label, the manufacturer states that every 1 gram (1,000mg) of sodium ascorbate powder contains 120mg of sodium and 880mg of ascorbate (vitamin C). How much sodium ascorbate must be weighed out (in milligrams) and added to 100 mL of water in order to have a final stock concentration of pure ascorbate equal to 250 mg/dL?

1- While cleaning out a laboratory shelf, you have made a mistake in labeling two bottles of ethanol and acetic acid. To identify the molecular structure of the contents of the bottle, samples were submitted for analysis using infrared spectroscopy, based on the IR results, draw the molecular structure of the molecule that would correspond to the spectrum for that compound. Justify your answer Spectrum A Spectrum B 0. 04 0.2 3000 2000 Waverumber icm-1) 1000 Transmitance

Need help, please. Not too sure if my answer is correct.

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