What is the proper proper image that should be seen through the eyepiece of the plarimeter when measuring the optical rotation?

Q: The refractometer works with set of prism using monochromatic light. True/false O True O False

A: Is the given statement true or false has to be identified.

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: Which of these projections has optical rotation of zero ?

A: In the question we are provided with three configurations ( of different molecules ). We need to…

Q: (b) What are cross-peaks? characteristics of cross-peaks of COSY and NOESY.

A: a cross-peak occurs when there is a correlation between the signals of the spectrum along each of…

Q: Two infrared spectra are shown. One is the spectrum of cyclohexane, and the other is the spectrum of…

A: IR or Infrared spectroscopy is used to find out the functional group in the structure.

Q: Fourier Transform Infrared (FTIR) is a common technique used to determine chemical functional groups…

A: Fourier Transform Infrared spectroscopy (FTIR) technique is used for getting a high quality of…

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

A:

Q: A if the value in column l is greater than in II B if the value in column II is greater than in I…

A: As R and S does not contain any specific values so 70%R and 30%S , 70%A and 30%R have same amount of…

Q: 2509 2099 1500 1000 2970 2262 2878 1456 1379 1151 843 28L

A: DBE = (C+1)-H/2-Br/2 = (4+1)-9/2-1/2 = 0.  It is aliphatic bromo compound.. A. Strong peak at 2970…

Q: What is “total luminescence spectrum”?

A: A spectrum is essentially a map or a diagram representing the light intensity produced by a number…

Q: -Describe the principle of optical rotation method and refraction method. Which one is better for…

A: 1. Answer - optical rotation method - Optical rotation, also known as polarization rotation or…

Q: Explain why the information from an XPS chemical shift must also be contained in an X-ray absorption…

A: The technique that helps in determination of any matter's electronic structure or geometry is termed…

Q: Calculate the observed rotation for a solution of a substance (2.0 g/mL) that is 80% optically pure.…

A: To calculate the observed rotation for a solution

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: If absorption happens equally across all wavelengths then a transparen material appears colorless.…

A: Two questions based on physical chemistry, which are to be accomplished.

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: Which is the molar refraction of benzonitrile?

A:

Q: whar do these ir peaks mean IR   2359.48   1697.05   1610.27

A: Ir Spectrum shows that the stretching frequency,  1. 2359.48 cm-1   - Stretching frequency of…

Q: Give a full discerption of luminescence and fluorescence. Then in short sentence what is the…

A: We have to tell about the luminescence and fluorscence. Then, we also have to tell the difference…

Q: Explain the relationship between optical activity and specific rotation with examples.

A: Optical activity :- ability of a chemical substance to rotate the plane of vibration of polarized…

Q: What are some key vibrations in the spectrum of chalcone? 100 98 96 94 92 90 88 86 84 82 80 78 76 74…

A: Infrared spectroscopy (IR spectra) is a branch of spectroscopy that is based on the vibration of…

Q: A 20 cm length of liquid turpentine (C10H6) was found to have an optical rotation of -73 degrees.…

A: See the solution given below

Q: Reagent blanks are primarily used to: compensate for any absorbance due to reagents or…

A:

Q: For the chlorate anion (CI03-) For the chlorate anion, please give the type of rotational axis and…

A:

Q: What is the magnification of the plane/flat mirror? А. +1.0 В. +0.1 С.- 1.0 D. – 0.1 Е. О

A:

Q: The relationship between liquid height and optical rotation

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

Q: Why are n-π* transitions generally of low intensities/low absorptions?

A:

Q: Fibonacci

A: Question 1: Romanesco Broccoli, Honeycomb, Sunflowers, Nautilus Shell, Animals, Spider Webs, Crop…

Q: Attach a schematic diagram showing the procedure involved in the determination of observed rotation…

A: Rotation or optical rotationIt is the rotation of the plane polarized light about the optical axis…

Q: Define the following terms a) Elements Of Symmetry b) Achiral Molecule c) Polychromatic Light d)…

A: Group theory can be defined as the branch of chemistry that deals with study of symmetry of a…

Q: 1. Identify the correct structure for the given IR spectrum. 100T 50 2000 500 1500 1000 4000 3000…

A: IR spectrum is mainly used to identify the functional group present in the compound. It measures the…

Q: Which of these is a comparatively insignificant factor affecting the magnitude of specific optical…

A: the phenomenon of rotation of plane polarized light (PPL) is called optical acitivity . It is a…

Q: The optical rotation study gives a=+120° as the result. Suggest an experiment to test if result is…

A: The dilution of the given sample will yield the result,

Q: What is difference between retention and inversion of configuration?

A: In organic chemistry, different types of chemical reactions are possible on the basis of their…

Q: The spectrophotometer is used to measure absorbance experimentally. Briefly, explain how this is…

A: A question based on absorption that is to be accomplished.

Q: Compare the literature IR spectrum to the experimental IR spectrum in a few sentences to show that…

A: Literature IR spectrum : Some important IR peaks are discussed below :  a. Medium peak at 3032 cm^-1…

Q: A 0.712 Kg of sugar was dissolved in 600 mL of water. The optical rotation of the sugar using a 5.0…

A: Given, mass of sugar = 0.712 Kg volume of water = 600 mL Length of tube = 5.0 cm Known optical…

Q: Why are IR peaks sharper whiles UV peaks broad ?

A:

Q: How would I be able to determine the splitting patterns for the molecule 1- chlorobutane?

A: The NMR spectrum provides the following details about the structure of the molecules: The number of…

Q: What is its Molar Refraction in cm3 /mole

A:

Q: Provide one advantage of the additional alternative Infrared (IR) Spectroscopy method over the IR…

A:

Q: Peak A: h W W1/2 = m 20 mm 15 mm 6 mm Peak B: W W1/2 B 6 mm 14 mm 5 mm hat is the percentage of the…

A: GC, component of lower boiling point elute first than higher boiling point. Hence the retention time…

Q: Give the interpretation of peaks of the IR spectra

A: IR spectroscopy is an analytical technique which aids in structural elucidation of a compound. The…

Q: True or False: The spin-spin (transverse) relaxation time is the time required for the nuclear…

A: The given statement is The spin-spin (transverse) relaxation time is the time required for the…

Q: Why do you have to use the same cuvette after doing the baseline correction in Ultraviolet-Visible…

A: Answer -  Ultraviolet-Visible Spectrophotometry - Ultraviolet-visible (UV-Vis) spectrophotometry is…

Q: What causes light refractics, what does the index of refraction (n) express

A: Refraction of light is resulted by the variation of velocity in various medium by which we can see…

Q: What type of stretching results in IR absorption?

A:

Q: Which of the ff. angles is used for absorbance and transmittance measurements? 180 degrees 135…

A: A multiple choice question based on analytical process that is to be accomplished.

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:

Q: A sample of dissolved oil in water has absorption in the infrared region. Which cuvette can be used…

A: It is given that the sample has an absorption peak in infrared region that means the wavelength…