Why can UV or higher energy radiation not be used for non- destructive spectroscopy of polymer structure ? Why is resolution limited by wavelength?

Q: ow does fluorescence work in bulk semiconductors?

A: The term bulk semiconductor refers to the semiconductors which have large preservation of atoms and…

Q: Give an example of fine structure from Infrared Spectroscopy. What information can you get from the…

A: Please find the below attachment.

Q: What are the molecular processes that occur when (a) infrared, (b) x-ray, and (c) ultraviolet…

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Q: The diffraction pattern suggested a molecular wavelength of 2.5 pm. What was the velocity of the…

A: The relationship between wavelength and velocity is given by De-Broglie and is shown below: λ = hmv

Q: In what wavelength range would you expect to find the maximum in the absorption spectrum of the dye…

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Q: The peak widths if the spectra of atomic UV-vis are different from the molecular UV-vis spectra.…

A: The peak width of the atomic UV-vis is narrow while the peak width of the Molecular UV-vis spectra…

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: (1) (2) 100 100F 95 90 80 75 70 65 50 45 40 35 30 25 4000 3500 3000 2500 2000 1500 1000 500…

A: Solution: We know the IR spectroscopy is an important tool for identification of functional groups…

Q: What is the difference between an absorption spectrum and a standard curve?

A: The difference between an absorption spectrum and a standard curve has to be given,

Q: a) Explain why absorption of UV-vis is typically recorded as broad absorption maxima and not single,…

A: The UV-vis absorption spectra is recorded as broad absorption peak due to

Q: Determine the wavelength at which maximum absorption takes place.

A: In the Absorbance and the wavelength there is relation . At a particular wavelength , we get that…

Q: In comparing fluorescence spectroscopy to UV-Vis absorption spectroscopy, which of the statements is…

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Q: β-carotene has a molar absorptivity of 100,000 dm^3 mol^-1 cm^-1 a certain wavelength. Calculate the…

A: Please find the below attachments.

Q: What are differences between n→π* and π →π* bonding electron transition in Fluorescence? *

A: We know In fluorescence, there are two types of electronic transition occur.  • n →π*  • π →π*

Q: Rose bengal is a chromophore used in biological staining that has an absorption maximum at 559.1 nm…

A: wavelength =559.1nm = 5.591×10-7 m Energy difference = ?(KJ/mol) between  the absorption maximum at…

Q: What is the effective transverse relaxation time when the width of a Lorentzian resonance line is…

A: To find the effective transverse relaxation time,use the formula,T2*=1π⊿ϑ1/2where,⊿ϑ1/2=the width of…

Q: 5- The vibrations in infrared spectroscopy might be active or inactive?

A: IN order for a vibrational mode to absorb infrared light, it must result in a periodic change in the…

Q: The relationship between liquid height and optical rotation

A: To give: A relationship between the liquid height and the optical rotation.

Q: Infrared Spectroscopy is useful for determining certain aspects of the structure of organic…

A: The given statement is infrared spectroscopy is useful for determine certain aspect of the organic…

Q: Dibenzalacetone 101 100 99 97 96 95 4000 3500 3000 2500 2000 1500 1000 500 Wave number (cm-1) Band…

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Q: What are some of the advantages and limitations of mass spectroscopy?

A: Mass spectroscopy :

Q: Convert the following infrared wavelengths to cm-1. 3.03 mm, typical for an alcohol O¬H

A: Given 3.03 mm, typical for an alcohol O¬H

Q: What is a triplet state? Are there molecules that have a triplet base state?

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Q: For the LMCT bands of [Co (NH3)5Br]2+, would you expect solvatochromism, i.e., dependence of the…

A: LMCT (Ligand to metal charge transfer) occurs when the ligand coordinated to the central metal ion…

Q: What are the advantages to using a near-IR excitation source, such as a diode laser (830 nm),…

A: Ans: Near IR Excitation source, the amount of Rayleigh scattering decrease.

Q: what is difference between Transmittance and absorbance in spectroscopy?

A: The main difference between transmittance and Absorbance is that transmittance measure how much…

Q: Suggest a reason why the spin-lattice relaxation time of benzene (a small molecule) in a mobile,…

A: At room temperature, the rate of tumbling of benzene in deuterated solvent is dose to Larmor…

Q: Explain why Infrared spectroscopy is sometimes called vibrational spectroscopy.

A: Infrared spectroscopy -    When an molecule exposed to the electromagnetic radiation ranging between…

Q: The infra-red stretching frequency Vco of P-S follows the order (P) Mn(CO), (Q) CO (R) H3B – CO (S)…

A: The IR stretching frequency of the vibration of a chemical bond is reported in terms of the…

Q: Analyze the effect of concentration and path length on the absorption of radiation in UV visible…

A: The relationship between the absorption, concentration, and path length of the solution is expressed…

Q: a) Describe the effect of conjugated chromophores in a molecules on UV-Vis absorption. b) Briefly…

A: As per our guidelines, I can only answer first question because you have posted multiple questions.…

Q: Why is 2D NMR used? What are its advantages and disadvantages?

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Q: Will quantitative fluorescence spectroscopy be as sensitive to path length differences in sample…

A: Fluorescence is a type of luminescence caused by photons exciting a molecule, raising it to an…

Q: The fluorescence lifetime of a compound is 10 ns and a quantum yield of 10% was measured. Calculate…

A: The relation between quantum yield (ϕ) and fluorescence lifetime (τ) is:  φ = kFτ   Given: ϕ = 10% =…

Q: 4. An infrared absorption spectrum of a gas-phase organic compound is shown below. Use the…

A: IR spectroscopy deals with IR region of electromagnetic spectrum. The typical IR absorption range…

Q: 4. Find out the correct order of increasing wavelongth in UV-vis spectroscopy for the molecules and…

A: Solution is given below in next step  Wavelength is inversely proportional to the Energy .

Q: Do you observe any change in the form of the absorbance bands while moving from nonpolar to polar…

A: Answer - According to the question - Excited state is more polar then the ground state  Hence ,…

Q: If a compound emitted a Rayleigh scattering at 532 and an Anti-Stokes emission at 451 nm, what is…

A: In a Raman scattering phenomenon,  the photon energy is not conserved and it can either lose energy…

Q: A molecule absorbs radiation of frequency 3.00x1014 Hz. What is the energy difference between the…

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Q: -CEN IV III II I

A:

Q: Explain the concept of Fourier Transform IR spectroscopy ?

A: Fourier-transform infrared spectroscopy (FTIR) is a technique used to obtain an infrared spectrum of…

Q: Explain the difference between the excitation and emission spectra of a molecule such as anthracene.

A: Emission spectrum An emissions spectrum can be defined as spectrum of the electromagnetic radiation…

Q: By how many joules is the energy of a molecule increased when it absorbs (a) visible light with a…

A: we know formula energy E = hcλ                 : ( 1 /   ) =   ( wavnumber) E = h C    h - plank…