Q1A.Define Mass Number ,Spectrochemical techniques ,Lewis (Acid-Base) Theory „Penetration time ,Photophysics. B. What is the benefit of using IR Spectroscopy ?

Q: Explain wht the 500cm-1 to 1500cm-1 region of IR spectra is not usually used?

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Q: What are the advantages of using the KBr in IR spectroscopic sample preparation?

A: This spectroscopy contains infrared range of electromagnetic spectrum and it's wavelength is greater…

Q: What are the different types of Monochromator in IR spectroscopy? Explain each of them?  Please…

A: Monochromator in IR spectroscopy - A monochromator is an optical device that transmits a…

Q: Illustrate peak tailing, peak fronting, and split peaks. What are their possible causes and…

A: Peak tailing is the peak shape distortion with a broader second-half and a narrower first half which…

Q: Explain why an internal standard is required during sample preparation in quantitative analysis when…

A: Internal standard : Internal standard is an element of known concentration chosen different from the…

Q: i) Find the differences between the AES and XPS in terms of principle and information obtained from…

A: (i) AES is the auger electron spectroscopy that provides the quantitative elemental and the chemical…

Q: Explain the principles of UV-Vis Spectrometer

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Q: Chemistry 1. Brifely explain what is meant by diamagnetic and paramagnetic shielding in NMR…

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Q: What features of FTIR spectroscopy make it useful for applications in sorting plastic recycling? Are…

A: The Society of the Plastics Industry categorized polymer resins into 6 categories namely,…

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: Estimation of Rhodamine B in Wastewater-UV-VIS Spectrophotometry

A: Interpretation - Explain the estimation of Rhodamine -B in wastewater -UV-vis spectrophotometer -…

Q: Define mass spectroscopy and the underlying principle/background of its method for characterizing…

A: Mass spectroscopy has many aspect in analytical purpose.It is used in drug detection,food poisoning…

Q: ___________can be used for field testing.   Raman Spectrometer   FT-IR   AAS

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Q: List three factors that influence the intensity of an IR absorption band.

A: The three factors that influence the intensity of an IR absorption band are: (1) In a bond, there…

Q: What is the correct order of the components in a UV-Visible spectrophotometer?

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Q: Absorption bands in the region of 1600-1700 cm-1 are often used for quantification of caffeine. What…

A: The structure of caffeine is shown as follows:

Q: a) In terms of spectral shape, how are atomic spectra different from molecular spectra? What is the…

A: Atomic spectra are the transitions of electrons between electronic energy levels in isolated atoms.…

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: Spectrophotometric Determination of Nitrate in Seawaters Explain the relationship between…

A: Since you have posted multiple questions, I will solve only first question for you. If you want any…

Q: Name the two gases used in NMR spectrometer. What are their functions in the equipment?

A: NMR spectrometry allows the molecular structure of a material to be analysed by observing and…

Q: Consider that a single sample was analyzed using two different spectrometric instruments. One has…

A: A sample was analyzed with the help of two different spectroscopic instruments. In first…

Q: Define: spectrochemical methods, spectroscopy, spectrometry, spectrometer, and spectrophotometer.…

A: spectrochemical methods: These methods measure the amount of electromagnetic radiations emitted or…

Q: Explain what is meant by signal in instrumental analysis.

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Q: 3. Draw a schematic and show principle of operation of a UV-Vis spectrometer, what are its…

A: UV-Visible spectrometer = The principle of UV-Vis spectroscopy is that the chemical compounds…

Q: 2. (a) An atomic absorption spectrometer requires a very different light source than does an…

A: Part-a In atomic spectroscopy there is transition of electrons between electronic energy level in…

Q: Why are instrumental methods (e.g. UV Vis spectroscopy) considered as comparative methods?

A: Instrumental methods are techniques employing various scientific instruments for the analysis and…

Q: -Compare atomic emission spectroscopy with atomic absorption spectroscopy in terms of the…

A: We have to Compare atomic emission spectroscopy with atomic absorption spectroscopy in terms of the…

Q: 2. Select the chemical structure (possible) from the given IR spectra r 4000 3000 1500 سلمه 2000 Ion…

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Q: In IR spectroscopy, please shortly explain what is a sample? Please answer at your own words.

A: IR Spectroscopy is used to identify the functional groups present in an organic compound. Because…

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: Instrumentation of IR spectroscopy?  Please answer at your own words

A: IR rays with the compound can tell us many things about the unknown compound mainly its FUNCTIONAL…

Q: What is the purpose of a matrix modifier in atomic spectroscopy?

A: In AAS analysis, some metals vaporizes along with sample matrix, e.g., As, Sb, Hg etc., in graphite…

Q: Why is it most accurate to measure absorbances in the range A = 0.3 to 2?

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Q: Sample and Treatment Li (ug/mL) Calibration Method Flame Type 1. None 25.1 standard curve air/CH2 2.…

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Q: why it makes sense to use an internal standard in IR spectrometry when its not used in Uv-Vis

A: Solutions- Internal standard method is used in Infra-red spectrophotometry.

Q: What are some sources of error that occur in UV-Vis and IR spectra measurements during lab?

A: Increasing commercial, scientific, and technical applications involving ultraviolet (UV) radiation…

Q: spectrum: m/e =122(M+); 107 (100% intensity); 79 and 51. Account for the formation of these peaks.

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Q: 4. (a) What is meant by anisotropic EPR spectra? Mention three applications of EPR spectroscopy.

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Q: (2) Why it is important to measure the absorbance in the range of 0.4 to 0.9. Explain your Answer.…

A: Absorbance greater then or equal to one means solution is highly concentrated which leads to…

Q: Why  high-resolution monochromator is needed for atomic emission spectroscopy while atomic…

A: Spectroscopy is an advanced analytical technique. It is the study of the interaction of light with…

Q: Why are instrumental techniques (e.g. UV-vis spectrometry) considered as comparative techniques?

A: Instrumental techniques gives more accurate results for quantitative analysis than conventional…

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: 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: Explain (with the aid of one or more equations) why a LOWER selectivity coefficient for an…

A: Ion selective electrode helps in building the measurements during potentiometric analysis. As it can…

Q: What is the purpose of UV visible spectroscopy ?

A: UV-Visible spectroscopy is an analytical technique in chemistry for quantitative determination of…

Q: Q2-) Compare the sample strengths used in fluorescence spectroscopy and UV-Vis techniques.

A: UV-VIS spectroscopy measures the absorption of light by chemical compounds which results in the…

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: What do we need to pay attention in using a UV-Vis spectroscopy for quantitative analysis in terms…

A: The UV-Vis spectroscopy follows Beer-Lambert's Law, which states that -" The absorbance of the…

Q: How would the position of a spectral line change as the separation d between the lines of the…

A: The relation between the position of a spectral line from the central maximum and the separation…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.