What is the wavelength range for UV radiation? (b) Calculate the amount of drug present in a sample (in gram per litre) if that has shown absorbance of 0.742 in UV Visible spectrophotometer using a cell of 1 cm at 280 nm. Given, Molar absorptivity, E = 1860 lit mol-1cm-1, Molecular weight = 153

Q: Dye Y has a concentration of 5.75 × 10-6 Molar and is placed into a 0.50 cm cuvette. Its molar…

A: Concentration = 5.75 × 10-6 M  length of cuvette = 0.50 cm  Molar absorptivity = 6.75 × 10 cm-1 M-1…

Q: The mass spectrum of an unknown compound shows a molecular ion peak at m/z 119, with a relative…

A: Given:A mass spectrum is a graphical representation of the distribution of ions based on their…

Q: Suppose that s = 0.28 nA instead of 0.56 nA, but yblank is still 1.26 nA. Find the signal detection…

A: SOLUTION: Step 1: The slope of the calibration is 0.229nA/micrometer. The standard deviation sample…

Q: ) Identify the structure, assign peaks, and J values for an organic compound C,H30 with NMR. (CDC13,…

A:

Q: (2) Adenine has a molar absorbance of 4 13.1 M-1cm-1 for 263 nm nucleic acid. What is the molar…

A: Absorbance = log (Ii/It) Ii = Intensity of incident light It = Intensity of transmitted light Also,…

Q: Schiff's test.

A:

Q: (b) Determine the structure of an organic compound with a molecular ion at m/z 73 and absorption in…

A: A question based on spectroscopy, which is to be accomplished.

Q: (a) Alizarin (structure shown below) is a red dye used for dyeing textile fabrics. Its extinction…

A: Answer

Q: Of the following structures, which would most likely produce the mass spectrum containing the…

A: The mass spectra that resembles most with the given data is : Propylybromide Formation of m/z 43…

Q: A B C ОН D E F

A:

Q: Molecule X has a A max at 395 nm in hexanes with a e max = 6000 M²cm'. What is the concentration of…

A:

Q: What is the molar absorptivity of this absorption band.

A: We need to find the molar absorptivity of this absorption band. This is based on beer Lamberts law…

Q: Absorbance Compound 77 is a neutral liquid (boiling point 16I° C) containing halogen. The peak at…

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

Q: The 'H NMR spectrum of 1,2-dimethoxyethane (CH;OCH,CH2OCH3) recorded on a 300 MHz NMR spectrometer…

A: Given: Compound = 1,2-dimrthoxyethane (CH3OCH2CH2OCH3) Frequency of spectrometer = 300 MHz Observed…

Q: (b) Acetone shows two absorption bands at 2 max = 270 nm and 187 nm. Which of the two is a low…

A: UV-Vis Spectroscopy can be defined as  a quantitative technique that is used for  measuring how much…

Q: 300 500 600 nm 400 2(nm) 200 a) From the given graph, what type of instrument used to identify the…

A: a) UV/visible spectrophotometer is used to identify the compound.

Q: When XeF4 was originally prepared a combination of IR and Raman spectroscopy was used to determine…

A: This question can be solved by group theory. For that we need the character tables for D4h and Td…

Q: The molecular ion region of the spectrum of biphenyl. M1 is observed at m/z 154 and the intensity of…

A: M.+ peak in the mass spectra of any compound is the molecular ion peak and gives the molecular mass…

Q: (b) Identify the following IR spectrum by finding the characteristic peaks. TRANSMITTANCE 0.9 0.8…

A: NOTE: please note more than one structure is possible based on the IR provided. I have drawn just…

Q: The chemical shift of tin some compounds are as follows Sn**, 0 mm s Sn (4-coordinate), 2:1 mm s…

A:

Q: What effect does increasing the operating frequency of a 1H NMR spectrum have on each value: (a) the…

A: In NMR spectrum, peaks are known as resonances, lines or absorptions. On the horizontal axis, the…

Q: Given the spectra below, answer the following questions, both spectra were obtained with 1.0 cm…

A: A question based on Beer-Lambert law, which is to be accomplished.

Q: (c) 'H NMR spectrum; Iron and Chlorine are NMR inactive, 31P, I = ½ 100% abundant. PCI3 Cl.. ..H Fe…

A: Solution -

Q: An unknown compound described by the spectra below is a liquid (b.p. 161 C) with a measured…

A: The mass spectrum, IR-spectra and the 1H-NMR spectra of a unknown organic compound is given. The…

Q: Avobenzone is used in sunscreens. A UV spectrum of a 3.0 mL sample of avobenzone (310.4 g/mol) in a…

A: The volume of avobenzene sample = 3.0 mLLength of the cell, l = 1.0 cmMolar exctinction coefficient…

Q: 2-Methyl-3-pentanol reacts with PCC to form compound F. () Draw the structure of F. (ii) In the mass…

A: Since you are posted with multiple sub-parts. As per the rule, I am answering first question only.…

Q: : (s)=strong, (m)=medium, (w)=weak. What functional class(es) does the compound belong to? List…

A:

Q: stion Completion Status: Relative Abundance 100 90 80 70 60 50 40 30 20 10 0 21 Mass (amu) Consider…

A: In mass spectrometry all positive ions are identified by their m/z values.The height of the peak is…

Q: Absorbance/ % 50- O-H 100+ 4 33 32 1 3000 4000 A 26 2500 2000 1500 Wavenumbers / cm 1000 500…

A:

Q: A student completed a similar lab experiment and got an εavg of 56 M-1cm-1. If their change in…

A: Rate of a reaction is ratio of change in concentration with change in time. Here we found rate of…

Q: Transmittance/% 100 50- A B 3000 2500 2000 1500 1000 500 Wavenumbers //cm Figure 2. IR spectrum of…

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Q: (c) 1-phenyl ethanol gives following peaks in its mass spectrum: m/e =122(M+); 107 (100% intensity);…

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Q: Identify the structure and assign peaks and J values for an organic compound C4H3O with p-NMR…

A: the solution is as follows:

Q: What spectral features might we see with 1000 scans at a resolution of 0.125 cm-1 ?

A: Resolution: It is defined as the minimum peak interval that can be distinguished. With increasing…

Q: r molecular formulas for a compound with a m o. (b) Calculate DBEs for each formula.

A: Given as,