Regarding light spectroscopy, which of the following statements is correct? The spectral lines are specific to each gas and thus the spectrum constitutes a fingerprint of the gas. it can be used to identify atoms and molecules All the options. It always requires a spectrometer
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- “Atomic absorption spectroscopy (AAS) and UV-Vis spectroscopy is similar in principles”. Do you agree with this statement? Explain briefly.The magnesium electron spectrum has a line at 266.8 nm. Does it have a greater speed in a vacuum (an area without an atom or particle) than does red light with a wavelength of 652 nm? Why or why not?How can you tell in an IR spectrum if the compound has just one or two oxygens? What is the difference between them? Thank you!
- Which of the following types of photons (packets of pure electromagnetic energy) have the highest energy level? visible light infrared microwaves ultra-violetLook for journal articles, news, or features published recently (2017 to 2022) that show the application of spectroscopy in a field of study (such as medicine). Please summarize this technique, highlighting its theories and how it fares with other analysis methods.The electronic excitation method in fluorescence and absorption spectroscopy is the same. What are some of the variations between using a fluorimeter to perform an excitation scan and an absorption scan? Do you think the two spectra should be similar? Describe. More info attached like protocol if needed
- Describe how you would prepare the following samples for analysis by a spectroscopic method. You should state the instrument you would use, and the calibration methods you would employ. -Arsenic in skin tissue-Paracetamol in solution from a tablet dissolution experiment-CYP450 enzyme activity in a blood plasma sampleWhat are the processes of concentrate samples analysis in Uv-visible spectroscopy? Please shortly answer at your own words(3-4 lines).If you have a sample of unknown composition, a first step at analysis might be a determination of the masses of the atoms and molecules in the sample. A mass spectrometer to make such an analysis can take various forms, but for many years the best technique was to determine the masses of ionized atoms and molecules in a sample by observing their circular paths in a uniform magnetic field, as illustrated is shown. A sample to be analyzed is vaporized, then singly ionized. The ions are accelerated through an electric field, and ions of a known speed selected. These ions travel into a region of uniform magnetic field, where they follow circular paths. An exit slit allows ions that have followed a particular path to be counted by a detector, producing a record of the masses of the particles in the sample. The moving ions can be thought of as a current loop, and it will produce its own magnetic field. The direction of this field at the center of the particles’ circular orbit isA. In the…
- A sample was placed on a chromatography column. Dichloromethane was used as the eluting solvent. All the components were eluted off the column, but no separation was observed. What must have been happening during this experiment? How would you change the experiment to overcome this problem?Write shortly about the instrumentation of ATR spectroscopy? Answer should be to the point.Provide a brief definition and a description of the significance of the following terms in NMR spectroscopy (7) intermediate exchange(8) SAR by NMR(9) the Larmour frequency
