When the secondary shell contains saturated or semi- saturated electrons, the status symbol values (J) are the absolute value of the sum of (L) with (S). 1- Error 2- true

Q: 1.) The "m/z value" and the" relative abundance " for M+2 peak in (CH3)2CH-Br?

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Q: 1. Circle the reaction that would more likely give the base peak. m/z = 57 mass = 57 II II m/z = 43…

A: Given :Different Type of reactants and products To find : Base peak of the compound  Solution : As…

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: 4. Did increasing the polarity of your eluent increase or decrease your Rr's? wPyalue. 3. Given that…

A: As per the rules only the first three sub-parts (4-6) can be answered: Thin layer chromatography:…

Q: Using the trendline from your plot, calculate the absorption of a solution with a concentration of…

A: Equation of the trendline is y = 16.88x - 0.0054 where y is absorbance and x is concentration.

Q: How do you call the small peak usually found at the the left of the moelcular ion peak in a mass…

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Q: Draw the fragmented molecular ion for the compound shown above for peaks 127,144 and 159. Thank you.

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Q: 1. The two mass spectra below correspond to two isomers of CSH10O2: methyl butanoate and valeric…

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Q: How can you interpret the Rf value to study any molecule?  Please shortly answer at your own words.…

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Q: SAMPLE 4000 3500 3000 2500 HAVENUMBERS 2000 1500 1000 600.0

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Q: 2- The chemical shift value of o-nitro toluene is higher than that of m-nitro toluene.

A: 2) In 1HNMR spectroscopy , the substituents, such as -NO2 can act as an electron withdrawing group…

Q: In mass spectrometry, the substance with a 1+ charge and a mass equal to the molar mass of an…

A: Mass spectroscopy can be defined as the most accurate technique used for the determination of molar…

Q: n the mass spectrum the highest peak is known as the base peak is also considered as the parent…

A: ->In mass spectrum the parent peak is due to the compound there is no fragmentation .it's…

Q: Why is the bound length in Sc-H less than that in c-c

A: Comparison of bond length of C-C and C-H

Q: Question 3 how do you call the analysis technique done by identifying the fragments corresponding to…

A: Mass spectrometry is the branch of chemistry in which we deal with deal with molecular ions,…

Q: The fifth shell has 5 sub-shells.

A: The number n = 5 means the fifth quantised energy level from the nucleus.

Q: 3. Which spectrum would be predicted from  ?  (Assume coupling constants are equal.  Use chemical…

A: Answer is explained below.

Q: Find Five candidates of RR Lyrae type with magnitude under +11?

A: RR lyare  With periods ranging from a few hours to two days and optical brightnesses that normally…

Q: What is the most likely m/z value for the base peak for 3-methylpentane? A. 15 В. 29 С. 43 D. 57 Е.…

A: Base peak:  The peak due to a fragmented ion in the mass spectrum with highest relative abundance is…

Q: B. Directions: Identify the product and interpret the main peaks in the following: 1. 29 m/z…

A: Since you have asked multiple question, we will solve the first question for you as per our…

Q: In mass spectrometry, the molecular ion peak occurs at O A. the largest m/z value. O B. the smallest…

A: Here, we have to find where the molecular ion peak occurs in mass spectrometry.

Q: diantilis ether. find the peaks

A: Here we have to identify each of the peaks for the protons of Diantilis ether.

Q: Acetic acid: Put in the molecular formula of the ions responsible for peaks at 45 and 43. Use the…

A: Acetic acid is : CH3COOH

Q: Please help, I am lost with lost with B,C,D

A: The question is based on the concept of Spectroscopy.   we have to analyse the spectra provided and…

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

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Q: Consider the mass spectrum below. 100 80- 60- 20 0.0- 0.0 60 100 miz SDBS, National Institute of…

A: The largest mass to charge (m/z) ratio indicates the molecular ion peak but it is not true with all…

Q: Why

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Q: Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. Which of the compounds given…

A: Functional groups are the components residing in a molecule and play a significant role in providing…

Q: 3. C3HB You have seen these peak locations before. What does the coupling pattern tell you.…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: select the Ksp expressions that correctly match the corresponding compounds. a) silver sulfide:…

A: Here we have to find correct expression of Ksp of above salt which got matched-

Q: Which of the labeled ions in the mass spectrum is least stable? (a) Peak II (b) Рeak I (c) Peak IV…

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Q: Spectrum 7: LOD C-H CN CEN bend 1s00 4000 3000 2000 HAVENUMBERI - 1000 so TRANSMETTANCEI

A: Following is the appropriate answer of the given question.

Q: Which structure is consistent with an (M] peak and an (M+2]* peak in the ratlo of 3:17 Click on a…

A: Br 79 has 51%, Br 81 has 49% abundance. and Cl 35 has 75% and Cl 37 has 25% abundance.

Q: Why KBr used in IR spectroscopic sample preparation?  Please shortly answer at your own words.…

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Q: Calculate the molar concentration for a sample dye solution with a measured absorbance of 0.304.…

A: A question based on calibration methods that is to be accomplished.

Q: Question 7 How do you call the small peak usually found at the the left of the moelcular ion peak in…

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Q: 5. For each potential unknown list the key IR frequencies that will distinguish their identity.

A: Infrared spectroscopy deals with the infrared region of electromagnetic spectrum. It is divided into…

Q: А B (Choose the most prominent frequency. Do not include units in your answer. Use only the…

A: Structure A is aldehyde and structure B is alcohol. Aldehyde shows most prominent peak for carbonyl…

Q: Question attached

A: The greatest m/z value is likely to be the molecular ion in the mass spectrum. Mass spectrum of some…

Q: Which of the structures have a major peak above 3000 cm1? (Select all that apply). none of these

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Q: 100 200 100 201 7.7 80 202 98.2 60 40 20 0.0+ 0.0 40 80 120 160 200 240 m/z 0.99 0.98 0.97 0.96 0.95…

A: Note : M:M+2 ratio is 1:1. Bromine is present. From % of M+1  no of carbons are seven. Therefore…

Q: 7. Calculate the expected +1 and M+2 relative intensities assuming M+ has a relative intensity of…

A: The y-axis of a mass spectrum is relative abundance (relative intensity). Calculates how much of an…

Q: How many hydrogen atoms neighbor the carbon that has the protons that produced peak A? The wording…

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Q: Diphenylmethane is a compound of the diene class 1- Error 2- true

A: In this question, we will discuss about Diphenylmethane is a diene class Compound.  You can see…

Q: With FTIR, where would you expect to see a peak for the C=C stretch?

A: Given structure of 1,4-dibromobut-2-ene shows stretching and bending vibrations for the C=C, C-H,…

Q: CH3 CH3 CH3 Сы Br Peak >peaks Br Br 3

A: The number of different set of proton give different signal. CH3 give 1 signal CH2 can give 1 signal…

Q: The resulting equation is: (Be sure that the answer field changes from light yellow to dark yellow…

A: Write expression of T in Gibb's- Helm Holtz equation --

Q: Please help to identify   Peaks cm -1 - - - - -   Intensity /shape - - - - -…

A: The chemical structure of the unknown compounds can be analyzed with the initial determination of…

Stereochemistry and Isomerism

Stereochemistry deals with the three-dimensional structure and properties of molecules. It explains the arrangement of atoms and their manipulation within a molecule in a 3D structure. Stereochemistry can be dealt with all types of molecules. Based on the stereochemistry of a molecule, the physical and chemical properties of the molecules vary.