A sample of tert-butyl bromide (2-bromo-2-methyl propane) has been contaminated with some methyl bromide. The NMR spectrum of this sample shows two signals, one at 1.8 ppm and one at 2.2 ppm, corresponding to these two compounds respectively. The integrals of the two signals equate to 6:1 respectively. What is the mole percent of each compound in the mixture, or phrasing it another way, what percentage of the mixture is tert-butyl bromide and what percentage is methyl bromide? Your objective is to answer this question, explaining how you reach your decision.

Q: What would be the partial interpretation (concerning the number of chemically equivalent hydrogen…

A: Proton nuclear magnetic resonance is used to determine the structures of the molecule with respect…

Q: A 13C NMR spectrum is shown for a molecule with the nolecular formula of C6H10O. Draw the structure…

A:

Q: Compare the 13C NMR spectra of 2-ethyl-3-hydroxyhexanal and 2-ethylhex-2-enal. Describe for…

A: The given compounds are 2-ethyl-3-hydroxyhexanal and 2-ethylhex-2-enal as shown below:

Q: Predict the masses and the structures of the most abundant fragments observed in the mass spectra of…

A: Fragmentation gives the resonance stabilized cations whenever possible. Loss of a small molecule is…

Q: Which of these compounds is expected to show 8 signals in the 13C NMR? - Hint: This compound is a…

A: Indigo dye have been used in blue dye and it is the organic compound which have 8 signal in 13C NMR.…

Q: ssign the H and C NMR spectra of acetylcholine justifying both chemical shifts and coupling…

A: The proton NMr helps in identification of different proton environments and 13C- NMR helps in…

Q: An unknown substance shows a molecular ion peak at m/e = 170 with a relative intensity of 100. The M…

A: Given: Molecular ion peak at m/e = 170 with a relative intensity of 100 M+1 peak has an intensity of…

Q: This is the spectral data for 4-cyclohexene-cis-1,2-dicarboxylic acid - Can you tell whether you…

A: Given   13C-NMR peak are δ 25.9, 39.2, 125.2, 174.9 There are total 4 peak given.

Q: 10. The following spectra were acquired from a compound made by dehydration of a secondary alcohol…

A: From the given data; The given compound is a disubstituted alkene and it is confirmed by the…

Q: Indicate the number of peaks that will show up in the 13C NMR spectrum of the given compound.

A: 13 CMR spectroscopy give information about carbon skeleton in organic compounds

Q: What are the major IR bands, 1H-nmr signals, And the m/z of the following compounds

A:

Q: Tell precisely how you would use the proton NMR spectra to distinguish between the following pairs…

A: Interpretation: The proton NMR spectra used to to distinguish between the given pairs of compounds.…

Q: Following is the 1H-NMR spectrum of compound O, molecular formula C7H12. Compound O reacts with…

A: HDI=(2C+2+N-H-X)2=(2×7+2+0-12-0)2=2

Q: Analyze the 1H NMR of 2-phenyl-2-propanol. Based on intensities and splitting patterns, it should be…

A: The question is based on the concept of Spectroscopy. we have to assign different values to the…

Q: 3-The value of the ortho-coupling constant is higher than the para-coupling constant for aromatic…

A: The distance between centres of two adjacent peaks in a multiplet is called coupling constant or…

Q: 1,3-Dibromobutane has the 'H NMR spectrum shown below. Map each hydrogen atom in the molecule of…

A: Answer

Q: With a 90 MHz NMR instrument, the three proton signals for 2,2-dimethyl-1-propanol are observed at…

A: Nuclear magnetic resonance is a technique that is used to predict the structural formula of the…

Q: What would be the partial interpretation (concerning the number of chemically equivalent hydrogen…

A: The question demands of considering only the integration of peak. Since the integration of the peak…

Q: A compound gives the following ¹H NMR spectrum. The signal area ratio (integration) for the three…

A: Two questions based on NMR spectroscopy that are to be accomplished.

Q: 4. A chemist isolated a compound in the lab with the formula of C,H,Br. This chemist quickly…

A:

Q: Draw an expanded structural formula for 3 of the compounds below. How many different resonance peaks…

A: The no. of signals in NMR is depend upon the environment of proton in the chemical strucutre. Same…

Q: Using infrared spectroscopy, how can salicylic acid be difterentiated trom acetylsalicylic acid…

A: Introduction: Infrared spectroscopy is used to detect the functional group in a molecule and nuclear…

Q: In your opinion how many peaks will appear in the 1H NMR spectrum of the compound below. What signal…

A: Proton NMR spectroscopy is an analytical technique which is used for structural elucidation of a…

Q: Which of the following statements are correct about NMR spectroscopy? 1. All atomic nuclei have a…

A: NMR spectroscopy applies a magnetic field to an atomic nucleus ( 1H , 13C, 15N) to identify the…

Q: For the following 9 compounds (most of which were the ones used in this lab), tell me what peaks you…

A: A question based on NMR spectroscopy that is to be accomplished.

Q: Using infrared spectroscopy, how can salicylic acid be differentiated from acetylsalicylic acid…

A: The chemical structures for the salicylic acid and aspirin are shown below. Acetylsalicylic acid has…

Q: In this experiment products 2, 3 and 4 are produced in slightly different amounts in the three…

A: Olefinic hydrogens are the hydrogens directly attached to the -C=C- double bond.

Q: What are the major IR bands, 1H-nmr signals, And the m/z of the following compounds…

A: It is given that the molecule is triphenylmethanol and its structure is shown below,

Q: The 'H NMR spectrum of 1-nitronaphthalene recorded at 298K in CDC!3 solution is given below. The…

A: Every nuclei will have spin and if an external magnetic field is applied, there will be an energy…

Q: Vanillin is the major flavor and scent compound isolated from vanilla beans. In addition to it's use…

A: The 1-HNMR chemical shifts for the given compound is as follows.

Q: For the following 9 compounds (most of which were the ones used in this lab), tell me what peaks you…

A: A question based on NMR spectroscopy that is to be accomplished.

Q: Give the structure for two isomers of molecular formula C4H10O which are consistent with the ^1H-NMR…

A: Note : compound b is isobutyl alcohol.  It is having 4 signals. Compound c is having diethyl ether…

Q: The following two mass spectra represent 1-bromo-4-ethylbenzene and (1-bromoethyl)benzene,…

A: We can assign the spectrum by seeing the base peak means the most intense peak of the spectrum, we…

Q: The 13C NMR spectrum of ethanoic acid (acetic acid) shows a quartet centred at δ = 21 with a…

A: 13C-NMR spectrum observed the signal due to the presence of carbon and attached hydrogen with it in…

Q: Microwave Chemistry-Synthesis of Phenytoin Why are two carbonyl peaks observed in the infrared…

A: When the Resonance  is involved  with carbonyl the wave number decreases  as the double bond…

Q: Using this graph, what can be determined about the effect of enzyme concentration on the initial…

A: The given graph is,

Q: For the following compound: C3H5BrO2​​​​​​​​​​​ (Molecular Weight = 152)   -Calculate the degrees of…

A:

Q: What would be the partial interpretation (concerning the number of chemically equivalent hydrogen…

A: The number of signals in 1H NMR spectrum is equal to the number of different chemical environment…

Q: answer the following questions about the 1-Butanol-,3-methyl-acetate H NMR 1- identify the number…

A: Justification for nmr spectrum is given below.

Q: The following are integrations from a proton NMR. How do you convert these to the nearest whole…

A: The data obtained is as follows: 248.98/76.972 3.2 176.92/76.972 2.3 165.08/76.972 2.1…

Q: Given the information about the unknown: Unknown: MP: 101-106 oC White solid   IR: 2837, 1701,…

A: Given: Melting point of pure solid = 101-106 oC IR: 2837, 1701, 1602, 1391, 1139 cm-1

Q: What is the 1H NMR data (chemical shift, integration, multiplicity (specify as singlet, doublet,…

A: 1H-NMR is used to study the hydrogen environment in a molecule and identify the number and types of…

Q: What should the integral be for the peak at 12.25 ppm?

A: NMR spectroscopy is an analytical technique which is used for structural elucidation. It is based on…

Q: Both 1,4-dimethylbenzene and 1,3,5-trimethylbenzene produce a 1H NMR spectrum that has two signals.…

A:

Q: Part C Look at the NMR spectrum and list the structural characteristics you can determine from this…

A: The question is based on the concept of h NMR spectroscopy. We have to analyse the spectra and…

Q: Give the structure that corresponds to the following molecular formula and 'H NMR spectrum: This…

A: C8H16 (DBE = 8-16/2+1 = 9-8 = 1). The compound is olefin. The compound name is…

Q: analyse high resolution proton NMR spectrum and suggest a compound and write its name. Also write…

A: In proton NMR spectroscopy the chemical shift values obtained denotes the environment of the nuclei…

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.