Using Jablonski Energy diagram, describe and explain the theoretical bases of Raman Spectroscopy. What type of analytes can give good Raman signals?
Q: Explain wht the 500cm-1 to 1500cm-1 region of IR spectra is not usually used?
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Q: Describe how you will use the Raman spectroscopy to gain qualitative and quantitative information on…
A: The adulteration of palm oil with many fat-soluble azo dyes that is difficult to separate from the…
Q: How does the Hollow Cathode Lamp work during the quantitative analysis of Iron (Fe) in Atomic…
A: Atomic absorption spectrometry (AAS) detects elements in either liquid or solid samples through the…
Q: Please help with the Chemical shift Splitting pattern Integration HNMR
A: The compound is methyl benzoate. Ester is EWG. Therefore ortho , para protons are deshielded. ortho…
Q: recognize the bands of this IR spectrum and the compound 8 BRUKER 郵解 6000 5000 4000 3000 2000 1000…
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Q: Compare the techniques of Atomic Absorption Spectroscopy (AAS) and Inductively coupled…
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Q: In infrared spectroscopy the spectrum is plotted in wavenumbers on the x-axis. What is the…
A: The relation between the wavenumber and wavelength of a radiation is shown below. ν¯=1λ
Q: What technique – FTIR or Raman spectroscopy would you use to study – emulsion polymerization?…
A: Emulsion polymerization has wide range of applications in industries as well as academics. It is…
Q: Peocedures involved when using Surface enhanced Raman spectroscopy(SERS) to determine the…
A: Sudan –IV is a fat-soluble azo dye which is used in coloring tiles, polishes. And it is banned by…
Q: What is meant by metastable ion? How are such transitions detected in mass spectroscopy?
A: Answer - metastable ion - According to the question - Metastable ions are those that dissociate en…
Q: Vibrational wavenumbers for K[N3] are 2041, 1344 and 645 cm-1. Draw the structure of the [N3]- ion…
A: Given data :- Vibrational wavenumbers for K[N3] are :- 2041, 1344 and 645 cm-1
Q: How does the Hollow Cathode Lamp work during the quantitative analysis of Iron (Fe) in Atomic…
A: Hollow cathode lamps (HCL) are discharge lamps designed for use in Atomic Absorption (AA)…
Q: Discuss how the Fermi contact interaction and the polarization mechanism contribute to spin-spin…
A: The spin – spin coupling in NMR are due to the polarization mechanism which transmitted through…
Q: When is 2D NMR usually used and why?
A: 2D NMR it's a set of Nmr methods which give data ploted in space defined by two frequency axis…
Q: Please write the instrumental diagram of IR spectroscopy and show how it works?
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Q: Use the analytical procedure in analytical chemistry to gain quantitative and qualitative…
A: Palm oil is one of the most useful vegetable oil available. Sudan IV dye is used as a hue enhancer…
Q: Use the Analytical procedures in analytical chemistry to gain qualitative and quantitative…
A: SOLUTION: Step 1: Palm oil is a bright reddish/orange oil produced from the mesocarp of the fruits…
Q: Explain IR spectroscopy as a characterization technique.
A: IR spectroscopy is an supportive technique used for the structure elucidation. The principle of IR…
Q: It might be unexpected that the Karplus equation, which was first derived for 3JHH coupling…
A: The Karplus equation is used to describe the relationship between 3J-coupling constants and the…
Q: ___________can be used for field testing. Raman Spectrometer FT-IR AAS
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Q: Describe different types of shifts in UV/VIS spectroscopy and give examples of they might occur?
A: Answer- UV/Visible spectroscopy - The Principle of UV-Visible Spectroscopy is based on the…
Q: in nmr spectroscopy what are the advantages of using a magnet with as great field strength as…
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Q: Explain the principal work of atomic absorption spectroscopy? And how is it used for the…
A: Atomic absorption spectroscopy is based on the principle that when a radiation is applied on a…
Q: Use the analytical process to gain qualitative and quantitative information of palm oil adultered…
A: Palm oil is one of the oils that is generally used for cooking purposes. It is adulterated by many…
Q: Explain how you will use Raman spectroscopy to process adulterated palm oil containing Sudan IV
A: Palm oil is one of the most useful vegetable oil available. Sudan IV dye is used as a hue enhancer…
Q: (c) Discuss the electric quadruple splitting in Mössbauer spectroscopy.
A: Mössbauer spectroscopy is a spectroscopic technique based on the Mossbauer effect. In this…
Q: Using Jablonski Energy diagram, describe and explain the theoretical bases of Fluorescence…
A: Theoretical bases of fluorescence spectroscopy Fluorescence spectroscopy (also known as fluorimetry…
Q: Why does a compound that has a visible absorption maximum at 480 nm (blue-green) appear to be red?
A: Given observation, Absorption maximum of compound in the visible region is 480nm (blue-green) but…
Q: Write down the dipole allowed transitions for S'p' → s'p? excitation using LS coupling scheme and…
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Q: Combine the chemical shifts, integrals, and spin-spin splitting patterns in NMRspectra with…
A: NMR explains structure in terms of chemical shift, spin-spin interaction Chemical shift All the…
Q: INFRARED SPECTRUM 0.8 0.6 oo OH 0.4 0.2 3000 2000 1000 Wavenumber (cm-1)
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Q: Why is it common to use CCl4 as a solvent in IR spectroscopy
A: IR spectroscopy is used in structure elucidation of compound in chemistry.
Q: Classify the 19F nuclei in SF5− (which is square-pyramidal) into chemically or magnetically…
A: The structure of SF5− is shown below,
Q: Explain why spectral interferences in inductively coupled argon plasma optical emission spectrometry…
A: Spectral Interference Spectral interference is caused by overlapping of radiation in absorption line…
Q: a) Explain the processes occurring during the atomization by Atomic Absorption Spectroscopy. b)Why…
A: The study of interaction of electromagnetic radiation with matter is termed as spectroscopy.
Q: Use a group theoretical argument to decide which of the following transitions are electric-dipole…
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Q: In which of the ff. applications can UV-Vis spectroscopy be used? Quantification of colored…
A: From the given data we need to find the correct options of the applications of UV-Vis spectroscopy.
Q: 5. What is the working principle of raman spectroscopy.?
A: Note: As per Bartleby guidelines eligible to answer only the first question Spectroscopy: it is…
Q: Explain the difference of an operational principle between flame atomic absorption spectroscopy…
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Q: Briefly describe the difference between FT-NMR and continuous wave NMR (CW-NMR) NMR methods, and…
A: To find: a. Difference between FT-NMR and Continuous-wave NMR b. Advantages of FT-NMR c. Advantages…
Q: Suppose that the wavenumber of the J = 1 ← 0 rotational transition of 1H79Br considered as a rigid…
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Q: Why is effective water suppression an essential component of solution state biomolecular NMR…
A: In NMR spectroscopy when the solvents included H2O and D2O are used, solvent suppression techniques…
Q: What would be the wavelength of the Stokes Raman shift if the C-H bond were probed with a 405 nm…
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Q: ) trans-[Co(en)2Cl2]Cl is a chiral compound ) The coordination number for the anionic complex in…
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Q: Classify the 19F nuclei in PF5 into chemically or magnetically equivalent groups. Give your…
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Q: An instrument designed to measure the wavelength/wavenumber with great accuracy is called alan O…
A: Instrument designed to measure the wavelength/wavenumber with great accuracy is called:
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- An antihistamine shows sharp peaks at Raman shifts of v 488, 725,875, 925, and 1350 cm-1. At what wavelengths in nanometers would the Stokes and anti-Stokes lines for the antihistamine appear if the source were (a) a helium-neon Laser (632.8 nm)? (b) an argon-ion laser (488.0 nm)?Explain the basic principle of Raman spectroscopy. 2. What type of scattering and can be observed and explain the differences. 3. What does it mean by Raleigh scattering and draw the energy difference. 4. What does it mean by inelastic scattering? 5. Why does Stokes scattering has higher intensity compared to anti-stokes?Use the analytical procedure in analytical chemistry to gain quantitative and qualitative information about Sudan IV dye in adulterated palm oil using the Raman spectroscopy protocol
- Peocedures involved when using Surface enhanced Raman spectroscopy(SERS) to determine the quantitative nature of Sudan-iv dye in adulterated palm oil.Use the Analytical procedures in analytical chemistry to gain qualitative and quantitative information about palm oil adulterated with Sudan IV dye. Use the Raman spectroscopy as the analytical method.What are the different types of Monochromator in IR spectroscopy? Explain each of them? Please explain at your own words.
- Use the analytical process to gain qualitative and quantitative information of palm oil adultered with any toxic dye using the raman spectroscopy Explained the bases of your analytical protocolThe protein haemerythrin (Her) is responsible for binding and carrying O2 in some invertebrates. Each protein molecule has two Fe2+ ions that are in very close proximity and work together to bind one molecule of O2, form ing an Fe2O2 group. (a) The Raman spectrum of oxygenated haemerythrinobtained with laser excitation at 500 nm has a band at 844 cm-1 which has been attributed to the O-O stretching mode of bound 16O2. Why is Raman spectroscopy and not infrared spectroscopy the method of choice for the study of the binding of O2 to haemerythrin? (b) Proof that the 844 cm-1band in the Raman spectrum of oxygenated haemerythrin arises from a bound O2 species may be obtained by conducting experiments on samples of haemerythrin that have been mixed with 18O2, instead of 16O2 . Predict the fundamental vibrational wavenumber of the 18O-18O stretching mode in a sample of haemerythrin that has been treated with 18O2. (c) The fundamental vibrational wavenumbers for the O-O stretching modes of O2,…Why is effective water suppression an essential component of solution state biomolecular NMR spectroscopy?
- Which of the following is true of surface enhanced Raman spectroscopy? a. It is produced by adding colloidal metal particles to a solution b. It requires a solid sample c. It requires adsorption on a dielectric surface d. It requires absorption by a resonant transitionProve that ICl3 occurs in the bent-T shaped structure predicted by VSEPR and not in a trigonal planar structure by determining the number and symmetries of the vibrations of each shape and how many are IR and Raman active. Given that ICl3 has 6 active vibrations in both IR and Raman spectroscopy, which shape is correct?In a Raman spectrum of acetylsalicylic acid Assign the peaks in the spectrum and briefly describe the molecular motions that correspond with the vibrations