In polarimetry when the sugar is heated for 60 mins instead of 30 mins hwat happens to the extent of inversion, will it lower or higher or cannot be determined

Q: A solution is prepared by dissolving 678 mg of testosterone in 20 mL of ethanol. The sample was…

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Q: 10.  a. Light at 278 nm passes through protein RNase A with optical path length is 1μm and the…

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Q: If a solution of a compound (50.0 g/100 mL of solution) has a measured rotation of +150 in a 2 dm…

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Q: What is the specific rotation 20[a ]D of the following mc a = 442° C = 01g.ml 1= 10cm 44.20 +4.420…

A: We wil use relation of specific rotation and concentration

Q: What could be the observe rotation  of a 0.86 M solution composed of a sample which has a MW of…

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Q: A 0.300 g tablet of levetiracetam is dissolved in 7.50 mL of acetone and placed in a sample cell…

A: Given: The specific rotation of levetiracetam, [α]=-93.4 Mass of tablet=0.300 g Volume=7.50 mL…

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: The pure D-form of a compound has a specific rotation (D line of sodium, 20° C) of +24°, whereas the…

A: First of all we need to calculate the enantiomeric excess by substracting minor from the major…

Q: IR stretches occurs at the lowest energy?

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Q: Mach the terms at left with as many terms at right by entering each characteristic's number in the…

A: Given question is : Match the following :

Q: What is the Hrxn in kJ? what is the Srxn in kJ?

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Q: Calculate the specific rotation of a substance that is dissolved in a solvent (0.4 g/mL) and that…

A: We will calculate the specific rotation of a substance that is dissolved in a solvent ( 0,4 g/mL)…

Q: Identify the main peaks for a mass spectrum of the compound in the attachment

A: The given mass spectrum of 2-chloropropane is :

Q: Dilute alcohol shows sharp stretch for OH group while neat alcohol shows broad OH stretch band.

A: Infrared spectroscopy is generally used for functional group determination in organic chemistry.…

Q: Circle the main chromophore of the following structure. Boo -N. N- OH

A: The main chromophore in the following structure is:

Q: Q3) (- A solution of 2.0 g of (+)-glyceraldehyde in 10.0 mL of water was placed in a 10.0 cm…

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Q: QUESTION 6 What could be the observe rotation of a 0.84 M solution composed of a sample which has a…

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Q: Indicate (no more than 2) for the following compound: Homotopic Heterotopic Enantiotopic…

A: If both the groups on a carbon atoms are same then 2 hydrogens attached to a carbon are homotopic.…

Q: What could be the observe rotation  of a 0.87 M solution composed of a sample which has a MW of…

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Q: Does the exclusion rule apply to C2H4?

A: The rule of mutual exclusion in molecular spectroscopy relates the observation of molecular…

Q: What could be the observe rotation of a 0.86 M solution composed of a sample which has a MW of…

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Q: When 0.300 g of sucrose is dissolved in water to a total volume of 10.0 mL and placed in a sample…

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Q: The observed rotation of 2.0 g of a compound in 50 mL of solution in a polarimeter tube 20 cm long…

A: Specific rotation is a property of a chiral compound. It is defined as change in orientation per…

Q: Calculate the specific rotation of the oraginc liquid, if the sample cell that was used was 100nm.

A: GIVEN THAT---- 10g og organic sovent dilute in 10 ml of volumertic flask optical rotation…

Q: Enantiomers can be distinguished using mass spectroscopy because they have different fragmentation…

A: Mass spectrometry uses ionisation method to form fragments of a compound and then give peaks…

Q: Calculate the specific rotations of the following samples taken at 25 °C using the sodium D…

A: The specific rotation 'α' of an optically active substance at a particular temperature and for a…

Q: A unknown sample gave a specific rotation of 0 when placed in a polarimeter. What conclusion(s) can…

A: In organic chemistry the Specific rotation means it is the property of a chiral chemical compound.

Q: Which of the structures have a major peak between 1700 and 3000 cm1? (Select all that apply). none…

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Q: If a solution of a compound (50.0 g/100 mL of solution) has a measured rotation of +150 in a 2 dm…

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Q: Calculate the amount of extract and amount of TE^-4 needed to get an aliquot of 1 ng/20 uL for the…

A: To obtain an aliquot of 1 ng/20 μL

Q: In each case, assign the correct configuration of R or S, 1 is highest priority, 4 is lowest…

A: R and S nomenclature: it is used to assign the molecule using CIP rules.The CIP rules are as…

Q: When an external magnetic field is applied, what happens to the protons in a sample? a. All protons…

A: When an external magnetic field is applied, what happens to the protons in a sample, some protons…

Q: The optical rotation of a sample was found to be 0.24° when the concentration was 0.60 g in 10 mL of…

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Q: Pure MSG, a common avor enhancer, exhibits a specic rotation of +24. (a) Calculate the ee of a…

A: a) The ee of a solution whose [α] is +10 is to be calculated b) [α] for the solution if the ee of a…

Q: 1.  a.  By numbering the carbons of a benzene molecule prove the identity operation E.(hint: show…

A: " since you have posted multiple questions, we will solve first question for you. If you want any…

Q: A 3.5 cm perimeter tube was used in the test of an unknown sugar with the observed rotation of…

A: We have been given the observed optical rotation of sample and the specific rotation and the path…

Q: Calculate the specific rotations of the following samples taken at 25 °C using the sodium D line.…

A: (b) Since the rotation is clockwise. The sample must be dextrorotatory or (+). The concentration is…

Q: Choose the structure below that must have given rise to the FTIR scan pictured below. Note that this…

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

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: 4. 1.00 g of sample is dissolved in 20.0 mL of ethanol. Then 5.00 mL of this solution is placed in a…

A: Given: Observed rotation of the sample = 1.25o  Mass of sample = 1.00 g Volume of sample = 20.0 mL…

Q: Which of the following conditions causes the O-H stretch of ethanol to shift to higher frequency and…

A: Which of the following conditions causes the OH stretch of ethanol to shift to higher frequency and…

Q: What is the specific rotation of glucose(MW 180) with a density of 1.56g/mL and an angular rotation…

A: Dear student,since you have asked multiple questions but according to guidelines we will solve 1st…

Q: I have a solution of a standard reference molecule and its' enantiomer.  I used 25 mg of the mixture…

A: Given : Mass of mixture = 25mg Specific rotation of the reference material = 100o Observed rotation…

Q: Calculate the specific rotation of the (S)-ibuprofen sample and (R)-ibuprofen sample based on the…

A: Given, Observed rotation of (S) - ibuprofen = + 0.54 degree Observed rotation of (R) - ibuprofen = +…

Q: What could be the observe rotation of a 0.53 M solution composed of a sample which has a MW of…

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Q: What is saponification? 4 sentences required please

A: Saponification has to be defined.

Q: Can number 4 be cis, trans configuration too?

A: Here we have to predict whether the pair of stereoisomers are cis-trans configurations or not.

Q: What could be the observe rotation  of a 0.53 M solution composed of a sample which has a MW of…

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Q: A natural product was isolated in the laboratory, and its observed rotation was +10° when measured…

A: The specific rotation of natural product is calculated as,