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Preparation of Diphenylacetylene Post-Lab Questions: 2. Draw a stereospecific skeleti stereospecific skeletal structure for the dibrominated...
Look up and draw the mechanism for the addition of Br2 to double bonds. Reference the...
Look up and draw the mechanism for the addition of Br2 to
double bonds. Reference the source from which you acquired the
mechanism.
Give the IUPAC name of the major product in the above-mentioned
reaction.
Draw the major product of obtained in the addition of Br2 to
stilbene.
Is this isomer chiral? What would be the optical rotation if
this sample was placed in a polarimeter?
Would a student obtain the same product if you started with
cis-stilbene instead of...
Discussion Questions: 1. a) Carefully draw a three-dimensional structure of each stereoisomer of stilbene dibromide. Do...
Discussion Questions: 1. a) Carefully draw a three-dimensional structure of each stereoisomer of stilbene dibromide. Do not include any identical structures. b) Identify the enantiomeric pair, and identify one pair of structures that are diastereomers. 2. Give careful stereo-drawings representing the complete mechanism for the reaction of cis-stilbene with bromine. Remember to show the two different modes of anti-attack that are possible, depending on whether you add the bromine from above to the left-hand or the right-hand carbon of the...
Hc VCH Draw the organic product formed when CH3CH2CH2OH is treated with each reagent. a H2S04 (180°C) d SOC12, pyri...
Hc VCH Draw the organic product formed when CH3CH2CH2OH is treated with each reagent. a H2S04 (180°C) d SOC12, pyridine Ig 1) NaH; 2) CH3CH2Br b NaH e PBr3 h 1) TSCI, pyridine; 2) NaSH c HBr f TsCl, pyridine 3. Draw the organic product formed when l-methylcyclohexanol is treaded with each reagent. In some cases, no reaction occurs. a KH c HBr Te NaHCO3 b Nacid HCI f 1) KH; 2) CH3CH2Br Draw two different routes to each of...
2. Draw the structure of the major organic product that is formed from the following reaction....
2. Draw the structure of the major organic product that is formed from the following reaction. Draw this structure in the box at the bottom of the next page. Then use letters to label all the sets of chemically equivalent carbons in this structure. The broadband proton-decoupled 13C NMR spectrum of the product is shown below. DEPT 90 and DEPT 135 data are included in the table on the following page. Use this spectroscopic data to make clear assignments of...
4 Synthesis of lohexene by Dehydration - Pre-Lab Assignment de drated with a strong and high...
4 Synthesis of lohexene by Dehydration - Pre-Lab Assignment de drated with a strong and high A w a y 's G UPAC 3) Explain why two products are formed from the dehydration of 3-hexanol, but only ONE product is formed from the dehydration of 3-pentanol. (Consider tr a d isomers only, not cis/trans stereoisomers.) 2. In an organic synthesis, reactions are sometimes performed in sequence to convert one functional group into another Complete this multi-step reaction sequence on paper:...
Post-Lab Questions Write your answers in pen and include tontits 1. Draw a structure for water, showing that it...
Post-Lab Questions Write your answers in pen and include tontits 1. Draw a structure for water, showing that it is a polar solvent. 2. Draw a structure for CCL, carbon tetrachloride. Is this a polar or non-polar solvent? 3. Generally, what effect does increasing temperature have on the solubility of a substance? 4. Why are "spectator ions" not included in the net ionic reaction? 5. What did you observe in this experiment that tells us whether wax is polar or...
Study the reaction shown below, involving rrans-2-chlorocyclohexanol (pK_a = 12.7), and answer the questions posed underneath....
Study the reaction shown below, involving rrans-2-chlorocyclohexanol (pK_a = 12.7), and answer the questions posed underneath. Please rename the starting compound using R and/or S instead of trons _____ Did inversion occur during the reaction above? YES or NO Is the cyclic ether (epoxide) product (73% yield) optically active? YES or NO. Please briefly explain your answer. Did an initial acid-base reaction occur between the trans-2-chlorocyclohexanol and hydroxide ion? If you think yes, please report the equilibrium constant for the...
Draw the structure of each compound 1. Draw the structure of each compound: (a) cis-1,2-Cyclohexanediol (b)...
Draw the structure of each compound
1. Draw the structure of each compound: (a) cis-1,2-Cyclohexanediol (b) Isobutanol (c) 2,4,6-Trinitrophenol (d) (R)-2,2-Dimethyl-3-heptanol (e) Ethylene glycol (0) (s)-2-Methyl-1-butanol 2. Acid-catalyzed hydration of 3,3-dimethyl-1-butene produces 2,3-dimethyl-2-butanol. Show a mechanism for this reaction 3. Acid-catalyzed hydration of 1-methylcyclohexene yields two alcohols. The major product does not undergo oxidation, while the minor product will undergo oxidation. Explain. 4. Using 2-propanol as your only source of carbon, show how you would prepare 2-methyl- 2-pentanol. 5. Identify...
Page 119 of 147 Sci122 Lab9 Lipids Post Lab Questions: 1. Draw the structure of stearic...
Page 119 of 147 Sci122 Lab9 Lipids Post Lab Questions: 1. Draw the structure of stearic acid. Circle the portion of the stearic acid that is hydrophobic (not soluble in water). Put a square around the portion of the stearic acid that may be hydrophilic (soluble in water). A student adds NaOH dropwise to the tube with stearic acid and notices that it is more soluble. Can you explain why? What chemical reaction has happened?
1st picture is the questions and the next two pictures are the experiment the questions are...
1st picture is the questions and the next two pictures are the
experiment the questions are based off of
Prelab Questions 1) Based on the Material Safety Data Sheets (MSDS) for the compounds, which of the compounds in this experiment is the most hazardous, and why? 2) Fill in the reagent table below. Make sure you correctly calculate the molar amounts of your materials. Name Formula Mol.-eq. Mw mmol Density/Conc. Amount 10 400 mg Meso-Stilbene Dibromide Potassium Hydroxide 5.75 Triethylene...
Look up and draw the mechanism for the addition of Br2 to
double bonds. Reference the source from which you acquired the
mechanism.
Give the IUPAC name of the major product in the above-mentioned
reaction.
Draw the major product of obtained in the addition of Br2 to
stilbene.
Is this isomer chiral? What would be the optical rotation if
this sample was placed in a polarimeter?
Would a student obtain the same product if you started with
cis-stilbene instead of...
Discussion Questions: 1. a) Carefully draw a three-dimensional structure of each stereoisomer of stilbene dibromide. Do not include any identical structures. b) Identify the enantiomeric pair, and identify one pair of structures that are diastereomers. 2. Give careful stereo-drawings representing the complete mechanism for the reaction of cis-stilbene with bromine. Remember to show the two different modes of anti-attack that are possible, depending on whether you add the bromine from above to the left-hand or the right-hand carbon of the...
Hc VCH Draw the organic product formed when CH3CH2CH2OH is treated with each reagent. a H2S04 (180°C) d SOC12, pyridine Ig 1) NaH; 2) CH3CH2Br b NaH e PBr3 h 1) TSCI, pyridine; 2) NaSH c HBr f TsCl, pyridine 3. Draw the organic product formed when l-methylcyclohexanol is treaded with each reagent. In some cases, no reaction occurs. a KH c HBr Te NaHCO3 b Nacid HCI f 1) KH; 2) CH3CH2Br Draw two different routes to each of...
2. Draw the structure of the major organic product that is formed from the following reaction. Draw this structure in the box at the bottom of the next page. Then use letters to label all the sets of chemically equivalent carbons in this structure. The broadband proton-decoupled 13C NMR spectrum of the product is shown below. DEPT 90 and DEPT 135 data are included in the table on the following page. Use this spectroscopic data to make clear assignments of...
4 Synthesis of lohexene by Dehydration - Pre-Lab Assignment de drated with a strong and high A w a y 's G UPAC 3) Explain why two products are formed from the dehydration of 3-hexanol, but only ONE product is formed from the dehydration of 3-pentanol. (Consider tr a d isomers only, not cis/trans stereoisomers.) 2. In an organic synthesis, reactions are sometimes performed in sequence to convert one functional group into another Complete this multi-step reaction sequence on paper:...
Post-Lab Questions Write your answers in pen and include tontits 1. Draw a structure for water, showing that it is a polar solvent. 2. Draw a structure for CCL, carbon tetrachloride. Is this a polar or non-polar solvent? 3. Generally, what effect does increasing temperature have on the solubility of a substance? 4. Why are "spectator ions" not included in the net ionic reaction? 5. What did you observe in this experiment that tells us whether wax is polar or...
Study the reaction shown below, involving rrans-2-chlorocyclohexanol (pK_a = 12.7), and answer the questions posed underneath. Please rename the starting compound using R and/or S instead of trons _____ Did inversion occur during the reaction above? YES or NO Is the cyclic ether (epoxide) product (73% yield) optically active? YES or NO. Please briefly explain your answer. Did an initial acid-base reaction occur between the trans-2-chlorocyclohexanol and hydroxide ion? If you think yes, please report the equilibrium constant for the...
Draw the structure of each compound
1. Draw the structure of each compound: (a) cis-1,2-Cyclohexanediol (b) Isobutanol (c) 2,4,6-Trinitrophenol (d) (R)-2,2-Dimethyl-3-heptanol (e) Ethylene glycol (0) (s)-2-Methyl-1-butanol 2. Acid-catalyzed hydration of 3,3-dimethyl-1-butene produces 2,3-dimethyl-2-butanol. Show a mechanism for this reaction 3. Acid-catalyzed hydration of 1-methylcyclohexene yields two alcohols. The major product does not undergo oxidation, while the minor product will undergo oxidation. Explain. 4. Using 2-propanol as your only source of carbon, show how you would prepare 2-methyl- 2-pentanol. 5. Identify...
Page 119 of 147 Sci122 Lab9 Lipids Post Lab Questions: 1. Draw the structure of stearic acid. Circle the portion of the stearic acid that is hydrophobic (not soluble in water). Put a square around the portion of the stearic acid that may be hydrophilic (soluble in water). A student adds NaOH dropwise to the tube with stearic acid and notices that it is more soluble. Can you explain why? What chemical reaction has happened?
1st picture is the questions and the next two pictures are the
experiment the questions are based off of
Prelab Questions 1) Based on the Material Safety Data Sheets (MSDS) for the compounds, which of the compounds in this experiment is the most hazardous, and why? 2) Fill in the reagent table below. Make sure you correctly calculate the molar amounts of your materials. Name Formula Mol.-eq. Mw mmol Density/Conc. Amount 10 400 mg Meso-Stilbene Dibromide Potassium Hydroxide 5.75 Triethylene...
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