b. which molecule will have a larger Rf on a SIO₂ TLC plate using 10% Ethyl acetate/hexane as eluent? Draw their structures and explain why. Benzoic acid or ethyl benzene?

Q: Give a possible explanation why the Rf values of the dyes on the same chromatrogram are not all…

A: The ions or compounds have different polarities and polarity is the factor on which the Rf value is…

Q: A particular mixture was seperated into three components usin paper chromatography. the Rf value of…

A: Rf value is the ratio of distance travelled by a given component to the distance travelled by the…

Q: Loss of which fragment from the parent molecule could account for the peak at 57 in the mass…

A: An analytical technique which is used for the analysis of mass/charge ratios of the fragments…

Q: What is the Rf value for the uppermost yellow spot in TLC plate 3 (plate imaged below)? It is…

A: The TLC plate 3 with all the spots is given below :

Q: and all basic drugs using SPE with hydrophobic resin. ▪ A)True In an untargeted analysis by GC-MS,…

A: 1) False  In SPE technique ,one or more analyte  from liquid sample are isolated by extracting or…

Q: Identify the fragments of 1-bromohexane in the mass spectrum

A: Lone pair of electrons on halogen are the most loosely bound electrons. After removal of one of the…

Q: 15.0 mL solution of Ba(OH)₂ is neutralized with 26.4 mL of 0.200 M HCl. What is the concentration of…

A: Reaction between an acid and a base, to yield water and a salt as the product is called…

Q: How is the molar mass of 2-methyl-2-hexanol is different from the M+1 peak of the mass spectrum?

A: Oxygen has three isotopes i.e. O16, O17, O18 In 2-methyl-2-hexanol, O16 is a commonly found isotope.…

Q: When naphthalene, butyric acid, and phenyl acetate are separated using dichloromethane as the…

A: The given compounds are naphthalene, butyric acid, and phenyl acetate. The TLC plate separate the…

Q: The mass spectrum of Compound D, with a molecular formula C8H7BrO2 is shown below. Draw the most…

A: The m/Z ratio of the ion fragment is given, also is can be detected through the graph. Now through…

Q: 1a. Briefly explain 3 advantages and disadvantages of using ¹H-NMR for the quantitative analysis of…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: X Y Z sample before cm 6 -5- 4 3- X Y Z sample after solvent front origin line

A:

Q: HM-202 Lab 3 Chromatographic Sep How would the Rf values change if you used pure dichloromethane (no…

A: In TLC separation, when a more polar solvent is used as mobile phase, all compounds travel further…

Q: Relative Intensity Use the Mass Spectrum to try and identify the original molecule. Hint, there are…

A: The question is based on the concept of organic spectroscopy. We need to analyse the spectral data…

Q: The sample you analyzed has an intensity of 0.83 and a wavelength 672 nm. When you reanalyze the…

A: The question discusses about the change in the intensity of the absorbance peak of a given sample in…

Q: Based on the following Rf values from TLC, explain the similarities and differences between Crude 1…

A: A question based on analytical process that is to be accomplished.

Q: What is the chemical shift in ppm of a carbon that resonates at 1325 Hz on a 250 MHz instrument?

A: Frequency in Hz = 1325 HzFrequency of instrument = 250MHz

Q: If a TLC was run in a solvent system that caused all the spots to show up at the baseline, how could…

A: Rf value Vs polarity of the eluent

Q: Exp 6. IR Spectroscopy OH NaOCI ACOH, 45-50 °C CS Scanned with CamScanner

A: IR spectroscopy mainly used for the determination of functional groups present in molecules.

Q: CHM-202 Lab 3 Chromatographic Separation Rev2 G6-2022 5. If you had a dye with a molecular weight of…

A: This problem is based on Lambert Beer's Law. From the law we will find the absorbance and from the…

Q: The mass spectrum of 2,2-dimethylpropane shows only a very weak molecular ion peak at m/z = 72.…

A:

Q: Match a structure with the correct IR spectrum. You will, of course, notice that there are more…

A: here we are required to find the IR spectra which matches correctly with the given compound

Q: will be the pattern of the molecular ion peak(s) in the mass spectrum of 3-chloro-methyl-benzene…

A: The question is based on the concept of organic chemistry. it involves prediction of peak in mass…

Q: Chromatogram uV 30000000- 20000000- 10000000- 0- 0.5 0.97 1.0 1.5 1.72 2.0 2.5 SFID1 min

A: Gas chromatography is a method of separating and identifying components of a mixture. It depends on…

Q: Find the chemical shift of C7H7Cl (4-Chlorotoluene) in ppm 4-Chlorotoluene is a ring structure with…

A: The structure of p-chlorotoulene is ---

Q: What would be the signal, chemical shift, integration, or splitting? And what's the product…

A: In the given question we have to predict the structure of the compound based on the given…

Q: Determine the purity in synthesized asprin and acetaminophen? Below is the data from my TLC plates.…

A:

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.