The specific rotation of a sample depends upon measured angle of rotation, the density of the sample, and the pathway length of the light. True False
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- please answer this question!2. According to the Beer-Lambert law absorbance is proportional to concentration at each wavelength. In principle, one could choose any wavelength for quantitative estimations of concentration. However, we generally select the wavelength of maximum absorbance for a given sample and use it in our absorbance measurements. Especially, one should avoid the steep portions of the spectrum. Why? 3. Which concentration range a dilute or a concentrated one - is chosen for accurate determinations of unknown concentrations?Which of these is the correct rotation for [a] of 0°?
- Applications of NMR spectroscopy in pharmaceutical analysis Can potentially be used for fingerprinting mixtures Has good potential for non-destructive quantitative analysis of drugs in formulations without prior separation Can determine impurities, including enantiomeric impurities, without separation Powerfull technique for the characterization og the exact structure of raw materials, intermediates, and finished productsA chair structure of a disubstituted cyclohexane is shown below. Determine which of the following 2D representations matches the chair structure. II A) I CH3 CH3 CI B) II C) II II CH3 IV H3C CI D) IV CI S..What is “total luminescence spectrum”? (
- Why does Cytochrome C have a peak absorbance of 409nm? When proteins usually have a peak absorbance of 280nm..?Q2: For the following molecules, determine the number of IR active C-O stretching vibration: a) b) C 柏香子 .CO OC..... CO : Fen OC..... :Fen CI Co Fe-CO OC- OC- C 0 CIWhat does the mullikin symbol of A1 stand for? Symmetrical with respect to the rotation around principle axis and vertical mirror plane Symmetrical with respect to the rotation around principle axis anti-Symmetrical with respect to the rotation around principle axis anti-Symmetrical with respect to the rotation around principle axis and vertical mirror plane
- %3D %3D %3D %3D %3D %3D IR spectrum shown below. Draw a structure that best fits this data. A molecule with the molecular formula of C7H6O produces the 0000 000 0000 000g Wavenumbers (cm) Select to Draw1. Draw two constitutional isomers of the formula C6H11B1. Explain how you would differentiate those molecules using either spectroscopy or spectrometry. You only need to differentiate them using one example.Help me