5. A mixture was analyzed using TLC and it was doubted to contain three components: R, T, and Y. A non polar solvent was used with a polar stationary phase. Answer the following questions: cm 9. solvent front origin line R TYrple Y mpte before of ter Which of the doubted components (R, T or Y) are present in the sample? Are there other components in the sample? What are the Rr values of R and T?
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- 1. A two-component mixture is analyzed by paper TLC. Component A is more soluble in the mobile phase than component B. The following result is obtained. Calculate the Rifor each component and label the identity of each Frond (3-0,4)CM3D2.6cmr A (2-6-04 m = 2.2cm B C67-0.ycm=0.3cm RF (A= 2.2cm = 0.85 2. Lem spot. 2 39で Solvent Front A0-2.6m %3D 3cm Spoting Line Rf (8- 0.3cm 2. Scm = 0.12 %3D 2. Which one is the more polar component? Explain IS morC polo Because its Rf Is low 3. If a more polar solvent (mgbil phase) is used for the above experiment, the result will be: O Both component A and Component B will travel further up the plate-Distance may verur b) Only Component A will travel further up the plat c) Only Component B will travel further up the plat d) They will travel on the plate the same distance as when a less polar Choose one of the answers and explain 4. Paper chromatography works as the same principle as TLC however, cellulose paper (the same as filter paper) is used for…How can we answerNone
- What would happen to the retention time of a compound if the following changes were made? Sketch the chromatogram of this mixture for the following questions (a, b and c). "10א2s 2.5 1.5- 0.5 -05 4.2 4.6 5.2 54 5.6 5.8 Time (s) a. Increase the flow rate of the carrier gas b. Decrease the temperature of the column c. Decrease the length of the column Intensity (arb, units)100 C4H200 O C3H₁3Cl O C5H10N C6H14 C6H12 80 60 40 20 0 10 20 40 60 m/z 80 100 120 140 MassSpec9. Select the most reasonable formula for the molecule analyzed, based on the provided data (parent peak m/z at 84):Polarities of analyte functional group increase in the order of hydrocarbon < ethers < esters < ketones < aldehydes < amides < amines < alcohols Arrange the order of elution [from shortest to longest retention time] for the following six compounds from an HPLC C18 column. C2H5OH CH3COCH3 CH3COOH CH3COOC2H5 C2H50C2H5 (СН3)2NH O A. C2H5OH < CH3COOH < (CH3)2NH < CH3COCH3 < CH3COOC2H5With a resolution of 500 a peak will an m/z value of 297.000 from which of the following peaks? 297.439 297.603 297.356 298.000 297.23210- Identify the molecular ion in this spectrum and what type of compound is this?. Click on image to enlarge Rel. Abundance ☎ 100. 80.- 60.- 40. 20.- 0 10. 45 -15 (6.6%) b) 46 20. MASS SPECTRUM 31 (100%) c) 47 (%0E) 67 30. m/z 40 (%29) St 46 (21%) 47 (0.5%)Find the expected mass of calcium carbonate2) Consider the following compounds. Which rankings list these compounds in terms of Rf from lowest to highest using a silica gel thin layer chromatography plate and 1:1 Ethyl Acetate:Hexanes as the developing solvent. (e. g. AIf the stationary phase and the compound being tested are both polar, will the retention factor (Rf) likely be smaller or larger than if a nonpolar compound was tested? Why? 1) The retention factor will likely be smaller as it has a smaller interaction with the stationary phase O 2) The retention factor will likely be greater as it has a smaller interaction with the stationary phase O3) The retention factor will likely be smaller as it has a greater interaction with the stationary phase 4) The retention factor will likely be greater as it has a greater interaction with the stationary phaseRecommended textbooks for youChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage LearningOrganic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind…ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEYChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage LearningOrganic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind…ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY