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This assignment is to be completed before your assigned lab session. Be sure to write your answers clearly and legi...
Pre-Lab Assignment 1 (detach and submit to your TA at the beginning of your lab session)...
Pre-Lab Assignment 1 (detach and submit to your TA at the beginning of your lab session) Name: Date: 2009.2019 TA: Given the structures of benzophenone and biphenyl (shown below), answer the following questions. blphenyi benzophenone 1. Which of the two structures is more polar and explain why? 2. Which structure would be expected to have a higher R value on a polar TLC plate (ex: silica, alumina) and why? 3. Why is it recommended to spot the analyte on the...
Important! Answer these questions before coming to lab. Write the answers in your notebook and on a sheet of paper...
Important! Answer these questions before coming to lab. Write the answers in your notebook and on a sheet of paper to turn in at the start of lab. Predictions prior to the experiment: 1. Predict the reactivity of the alkyl halides in the Table with Nal/acetone from most reactive to least reactive. Briefly explain your reasoning. 2. Predict the reactivity of the alkyl halides in the Table with AgNO,/ethanol from most reactive to least reactive. Briefly explain your reasoning.. 3....
please do prelab assignment WEEK 2 PRE-LABORATORY ASSIGNMENT: Before you come to lab, clearly write out in your note...
please do prelab assignment
WEEK 2 PRE-LABORATORY ASSIGNMENT: Before you come to lab, clearly write out in your notebook all calculations necessary for the preparation of the three solutions listed in Part C. Be sure to pay close attention to units! Part C: Preparation of Sodium Sulfate Dilutions An X-fold dilution divides the concentration of a solution by a factor of X. For example: A 5-fold dilution of a 0.25 M stock solution would result in a 0.050 M final...
Chemistry 326 Laboratory Manual obowy zawabnya CH, HycoF OCH Pre-Lab Assignment: Complete BEFORE Lab! (5 pts)...
Chemistry 326 Laboratory Manual obowy zawabnya CH, HycoF OCH Pre-Lab Assignment: Complete BEFORE Lab! (5 pts) 1. Draw the ketones and aldehydes necessary to synthesize ALL compounds A-F via double Aldol condensation. 2. Determine the moles of acetone and the moles of benzaldehyde used in the sample procedure below. NOTE: you will need to find the density of acetone and benzaldehyde to do this exercise. 3. Using the same number of moles you calculated above, determine the VOLUME of each...
Preparation of Benzoic Acid using a Grignard Reagent URGENT 1. During your Grignard formation, a small...
Preparation of Benzoic Acid using a Grignard Reagent URGENT 1. During your Grignard formation, a small amount of benzene is formed. Provide a brief explanation and mechanism to explain this observation. 2. During your Grignard formation, a small amount of biphenyl is formed. Provide a brief explanation and mechanism to explain this observation. 3. What mass of water would be required to destroy the phenylmagnesium bromide that you prepared in this experiment? What volume does this represent? 4. Why is...
Experiment Write Up Proposal You will write up a synthesis procedure for one reaction that could...
Experiment Write Up Proposal You will write up a synthesis procedure for one reaction that could be potentially run in a face- to-face Chem 2321 lab session. Your proposal will include an introduction and procedure. The procedure will include step-by-step instructions for running the reaction (including reaction monitoring), work-up. (product isolation and purification), and analysis (characterization). You will need to include sample calculations for percent yield and provide sample spectra analysis. You must upload your proposal as a single document...
Attached is the lab experiment. Here are the questions I need help with: 1. What is...
Attached is the lab experiment. Here are the questions I need
help with:
1. What is the purpose of each of the following steps in this
experiment?
a. Adding solid NaCl to the reaction mixture
b. Repeated washings with water, sat'd NAHCO3, and brine
c. the pipet column chromatography
2. Which compound, cyclohexanol or cyclohexanone will have a
higher Rf on a TLC plate?
3. What is the advantage of using sodium hypochlorite as an
oxidant over CrO3 or Na2Cr2O7...
what is the prediction of the unknown amino acids mixture based on the strip from thin layer chromatography sheet? The unknown mixtures can be ala plus asp, ala plus asp plus lys, lys plus asp or ala...
what is the prediction of the unknown amino acids mixture
based on the strip from thin layer chromatography sheet?
The unknown mixtures can be ala plus asp, ala plus asp plus
lys, lys plus asp or ala plus lys.
anion exchange resin was used
Tubes 2,3, 6 and 7 had a spot appear that was light pink
We were unable to transcribe this imageWe were unable to transcribe this imageH-) to the column followed by a sufficient amount of the...
if applicacable, please write clear stepwise mechanism for all synthetic transformations, showing important internediates where appropriate....
if applicacable, please write clear stepwise mechanism for all
synthetic transformations, showing important internediates where
appropriate. only do this if applicable for this lab.
Experiment SD Column Chromatography Running the Reaction. Once sodium borohydride has been added to the reaction meture Isee next paragraph take samples at the times just indicated. Because this must be done in such a short time you must be well prepared before starting the reaction. One person should be the timekeeper, and the other person...
What is the theoretical yield (in grams) and percent yield of your triphenylmethanol product in this...
What is the theoretical yield (in grams) and percent yield of your
triphenylmethanol product in this experiment? (Weight of
triphenylmethanol: 0.060g)
BACKGROUND AND THEORY The Grignard reaction was one of the first organometallic reactions discovered and is still one of the most useful synthetically. By reacting an organohalide (usually a bromide) with magnesium in ethereal solvent, carbon becomes a nucleophile. Grignard reagents are the starting points for the syntheses of many alkanes, primary, secondary, and tertiary alcohols, alkenes, and carboxylic...
Pre-Lab Assignment 1 (detach and submit to your TA at the beginning of your lab session) Name: Date: 2009.2019 TA: Given the structures of benzophenone and biphenyl (shown below), answer the following questions. blphenyi benzophenone 1. Which of the two structures is more polar and explain why? 2. Which structure would be expected to have a higher R value on a polar TLC plate (ex: silica, alumina) and why? 3. Why is it recommended to spot the analyte on the...
Important! Answer these questions before coming to lab. Write the answers in your notebook and on a sheet of paper to turn in at the start of lab. Predictions prior to the experiment: 1. Predict the reactivity of the alkyl halides in the Table with Nal/acetone from most reactive to least reactive. Briefly explain your reasoning. 2. Predict the reactivity of the alkyl halides in the Table with AgNO,/ethanol from most reactive to least reactive. Briefly explain your reasoning.. 3....
please do prelab assignment
WEEK 2 PRE-LABORATORY ASSIGNMENT: Before you come to lab, clearly write out in your notebook all calculations necessary for the preparation of the three solutions listed in Part C. Be sure to pay close attention to units! Part C: Preparation of Sodium Sulfate Dilutions An X-fold dilution divides the concentration of a solution by a factor of X. For example: A 5-fold dilution of a 0.25 M stock solution would result in a 0.050 M final...
Chemistry 326 Laboratory Manual obowy zawabnya CH, HycoF OCH Pre-Lab Assignment: Complete BEFORE Lab! (5 pts) 1. Draw the ketones and aldehydes necessary to synthesize ALL compounds A-F via double Aldol condensation. 2. Determine the moles of acetone and the moles of benzaldehyde used in the sample procedure below. NOTE: you will need to find the density of acetone and benzaldehyde to do this exercise. 3. Using the same number of moles you calculated above, determine the VOLUME of each...
Experiment Write Up Proposal You will write up a synthesis procedure for one reaction that could be potentially run in a face- to-face Chem 2321 lab session. Your proposal will include an introduction and procedure. The procedure will include step-by-step instructions for running the reaction (including reaction monitoring), work-up. (product isolation and purification), and analysis (characterization). You will need to include sample calculations for percent yield and provide sample spectra analysis. You must upload your proposal as a single document...
Attached is the lab experiment. Here are the questions I need
help with:
1. What is the purpose of each of the following steps in this
experiment?
a. Adding solid NaCl to the reaction mixture
b. Repeated washings with water, sat'd NAHCO3, and brine
c. the pipet column chromatography
2. Which compound, cyclohexanol or cyclohexanone will have a
higher Rf on a TLC plate?
3. What is the advantage of using sodium hypochlorite as an
oxidant over CrO3 or Na2Cr2O7...
what is the prediction of the unknown amino acids mixture
based on the strip from thin layer chromatography sheet?
The unknown mixtures can be ala plus asp, ala plus asp plus
lys, lys plus asp or ala plus lys.
anion exchange resin was used
Tubes 2,3, 6 and 7 had a spot appear that was light pink
We were unable to transcribe this imageWe were unable to transcribe this imageH-) to the column followed by a sufficient amount of the...
if applicacable, please write clear stepwise mechanism for all
synthetic transformations, showing important internediates where
appropriate. only do this if applicable for this lab.
Experiment SD Column Chromatography Running the Reaction. Once sodium borohydride has been added to the reaction meture Isee next paragraph take samples at the times just indicated. Because this must be done in such a short time you must be well prepared before starting the reaction. One person should be the timekeeper, and the other person...
What is the theoretical yield (in grams) and percent yield of your
triphenylmethanol product in this experiment? (Weight of
triphenylmethanol: 0.060g)
BACKGROUND AND THEORY The Grignard reaction was one of the first organometallic reactions discovered and is still one of the most useful synthetically. By reacting an organohalide (usually a bromide) with magnesium in ethereal solvent, carbon becomes a nucleophile. Grignard reagents are the starting points for the syntheses of many alkanes, primary, secondary, and tertiary alcohols, alkenes, and carboxylic...
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