-Describe the principle of optical rotation method and refraction method. Which one is better for detecting the concentration of glucose solution?   2-What is the basic principle of eliminating interference absorption by dual-wavelength spectrophotometry?

Q: II в D What is the design of figure I1? O diode array spectrophotometer O single beam…

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Q: 400 50 600 700 800 Wavelength (nm)

A: The detailed solution of your question given below-- Siince, we know that the colour is possible in…

Q: how the principle of spectrophotometric experiments? Explain plz thank you

A: Spectrophotometry is a method to measure how much a chemical substance absorbs light by measuring…

Q: What is the significance of the Amax of a spectrum? What are the other uses of the…

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Q: What is the difference between a spectrometer and a spectrophotometer? a spectrophotometer has a…

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Q: What is the significance of the highest value of absorbance in spectrophotometry?

A: Spectrophotometer is an instrument used in measuring the intensity of light when it is passed…

Q: Explain the principles of UV-Vis Spectrometer

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Q: (a) At which wavelengths did each solution have the highest % transmittance? (b) Do the wavelengths…

A: a) The maximum percentage transmittance for Nickel nitrate solution is maximum at wavelength 500…

Q: Absorbance curve or Beer's Law Plot?

A: We are given a curve as follows:

Q: 10-1 Samma X rays Ultra violet Infrared Microwaves rays 020 1018 1016 1014 1012 1010 Visible Light…

A: According to Planck's Quantum theory,  energy of photon is directly proportional to frequency.  So,…

Q: 3. In molecular absorption spectrophotometry, the relationship between transmittance and…

A: absorption spectrophotometry It is used for analyzing the Concentration of various sample by based…

Q: The purpose of the best-fit line on an experimental scatterplot is to identify any linear trend in…

A: The purpose of best fit line on experimental scatter-plot is to find direction of relation between…

Q: If the percent transmittance of a colored solution is found to be 35%, what amount of distilled…

A: %Transmittance of original solution = 35% Desired %transmittance of diluted solution = 75% The water…

Q: Give the general steps in the use of a spectrophotometer. 2. Define the following: a. ) Optical…

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Q: For a 2D spectrum with 5 peaks on the diagonal, how many off- diagonal peaks are expected a. 1 b. 2…

A: For a 2D spectrum with 5 peaks on th diagonal, that means it has 3 peak on diagonal and 2 peaks off…

Q: Question 7 of 21 Choose the frequency of a peak that is most likely to correspond to an N-H stretch…

A: The N-H stretching frequency has to be chosen.

Q: 4. The amount of light (or the number of photons) absorbed depends on several factors, including how…

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Q: Indicate the relationship of proportionality that exists between: a) concentration and absorbance…

A: Applying concept of Beers law.

Q: The absorbance for a mixture at a particular wavelength is the sum of the absorbances

A: In this question we have to choose correct Statement for spectroscopy of a mixture with suitable…

Q: A chemist was provided with three compounds of A, B and C. The molecular structures of the compounds…

A: (i) When a molecule absorbs a characteristic frequency in the infrared region,a transition can occur…

Q: A.) Which parameter between "solvent polarity function" and dielectric constant show better…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: True or False 1. Photodiode arrays are devices within the instrument that help amplify the signal of…

A: *Photodiode is a semiconductor device that converts light energy into electrical energy through a…

Q: What is the reason of observing excitation light at the emission detector? I. Light scattered by…

A: The excitation light observed in the emission detector gives the excitation spectra which shows the…

Q: The Beer's Law plot of the standard curve for the equilibrium experiment was determined by plotting…

A: Beer's law is used for measuring the concentrations of the solutions using the absorbance data. It…

Q: A student uses visible spectrophotometry to determine the concentration of CoCl2(aq)CoCl2(aq) in a…

A: This question asks one to find the concentration of a solution where CoCl2(aq) as the solute and…

Q: Energy, E (J) Wavelength, A (nm) Frequency, v (s-1) Wavenumber, (cm-1) 4E-19 3.4E-19 700 580 540…

A: Given that : We have to complete the following table :

Q: State True/False for the following statements. 1. In UV-Vis spectrophotometric analysis, the 2.82%…

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Q: What length of mirror drive in a Michelson interferometer is required to produce a resolution…

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Q: What absorbance corresponds to 99% transmittance? To 0.10% transmittance?

A: If A is the absorbance and T is the transmittance, the relation between absorbance and transmittance…

Q: 5. Draw and label a box diagram for a double-beam spectrophotometer. What advantages does a double…

A: diagram :

Q: For a 2D spectrum with 5 peaks on the diagonal, how many off-diagonal peaks are expected О а.1 b. 2…

A: 1. For a 2D spectrum with 5 peaks on th diagonal, that means it has 3 peak on diagonal and 2 peaks…

Q: Briefly describe how a phase-contrast microscope work and the kind of image that it produces. Give a…

A: Phase-contrast microscopy generates an image by using the different refractive indexes and densities…

Q: The scale of a spectrophotometer extends from 1 to 100% T, what are the values of these two extremes…

A: We have to predict the values in terms of Absorbance.

Q: The scale of a spectrophotometer extends from 1 to 100% T, what are the values of these two extremes…

A: A = -log(T) A = log(1/T) A = log[100/T(%)] A = 2-log[T(%)]

Q: Give reason for: 3- A sample must be bombarded with electrons in mass spectrophotometry. 4- X-axis…

A: In mass spectrophotometry, by an electron bombardment, the sample is converted to fast moving…

Q: What value of absorbance corresponds to 45.0% T? If a 0.010 M solution exhibits 45.0% T at some…

A: We have to calculate the value is absorbance , also the percentage transmission.

Q: You have two solutions containing the same compound having the same pink color. The concentration of…

A: The relative color intensity is directly proportional to the concentration of the compound in the…

Q: 5) A light beam (2=325 nm) is shined on a certain metal surface. If the workfunction (4) of this…

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Q: The Beer’s Law plot of the standard curve for the equilibrium experiment was determined by plotting?…

A: The question is based on the concept of lamberts law and jobs method. the concentration of unknown…

Q: How will you use a solution of known concentration of one of the food dyes to determine the…

A: In UV-visible spectrum, different types of electronic transitions taking place between the HOMO and…

Q: Energy, E (J) Wavelength, A (nm) Frequency, v (s-1) Wavenumber, (cm-1) Color 4E-19 3.4E-19 700 580…

A: Given:

Q: The figure below is an absorption spectrum for a food dye molecule. What wavelength would be best…

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Q: Define the following terms: spectrophotometer, absorbance, pathlength, & (also known as molar…

A: Spectrophotometer: Spectrophotometer is an instrument that measures the amount of photons i.e.,…

Q: You have two solutions of the same compound that are blue. one is very pale and the other is very…

A: There are two solutions of same compound that has blue color. One of the solution is very pale and…

Q: 3. You have two solutions containing the same compound having the same pink color. The concentration…

A: Both solutions are identical, the only difference is that the conversation of the first solution is…

Q: Food dye spectroscopy  2. At what wavelengths should the readings be taken? What instrumentation…

A: Dyes are coloured substances so they are generally analysed in the visible region (400 nm to 800…

Q: Describe the units of IR in relation to frequency and energy and describe the functions of an FT-IR…

A: IR spectroscopy is a technique to detect the functional group in a molecule. This infrared light…