Answer the following questions related to the separation of a mixture containing the following molecules: Compound 1 Structure OH 2 3 4 OH OH (a) What is the DOMINANT intermolecular force that will attract each compound to bind to silica gel? Compound 1 Intermolecular Force 2 3 4 H-Bonding H-Bonding Dipole-Dipole H-Bonding (b) The following compounds were separated by silica gel chromatography. Each compound was collected and placed in flasks labeled A, B, C and D respectively, in order of their elution from the column (i.e., the compound in flask A eluted first, B eluted second, C eluted third, and D eluted last). Indicate which compound 1-4 you would expect in each flask. Flask A Compound 3 B 2 C 1 D 4

Answer the following questions related to the separation of a mixture containing the following molecules: Compound 1 Structure OH 2 3 4 OH OH (a) What is the DOMINANT intermolecular force that will attract each compound to bind to silica gel? Compound 1 Intermolecular Force 2 3 4 H-Bonding H-Bonding Dipole-Dipole H-Bonding (b) The following compounds were separated by silica gel chromatography. Each compound was collected and placed in flasks labeled A, B, C and D respectively, in order of their elution from the column (i.e., the compound in flask A eluted first, B eluted second, C eluted third, and D eluted last). Indicate which compound 1-4 you would expect in each flask. Flask A Compound 3 B 2 C 1 D 4

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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O Reagents Available a. CH₂=CHCH₂CI, AICI 3 CH3 b. CH₂Br₂, OH™ C. CH3CH₂COCI, AICI 3 d. H₂, Pt e. NBS, CCI4 f. K* tBuO™ g. CO, HCI, CUCI/AICI3 h. CH3CH₂CH₂COCI, AICI 3 i. BrCH₂CH₂Br, OH- j. CH3CH₂CI, AICI 3 k. RCO3H I. H3O+ Using conditions from the table, show how you would synthesize this compound from catechol (1,2-benzenediol). Select reagents from the table in the order that you wish to use them, i.e. aced; do not include punctuation or spaces. If more than one route exists, choose the shorter one; in no case will a synthesis require more than 5 steps.
f. g. OCH 3 CO₂H OCH 3 pyruvic acid 1. SOCI22 2.? NaBH4 CH3OH methicillin (narrow-spectrum, B-lactam antibiotic)? H₂SO4 (cat) C6H8O4 (show structure)
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4) Why might a student obtain a percent yield more than 100% for this preparation?
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Volume of acetic anhydride: 2.98 mL Mass of salicylic acid: 1.00 g Mass of aspirin recovered: 0.67 g Show that mmol of aspirin recovered divided by mmol of limiting reagent x 100% gives the same % yield (please explain) Thank you.
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II. Complete the following reactions
3. PROVIDE FINAL PRODUCTS CI fo 1. 2. HBr LiCu 3. Mgº, Ether 4. CO2, then H3O+ 2