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I am running the reaction shown below with two reactants, A and B. To see if...
can you please answer all 1. When you run a TLC of the reaction in ethyl...
can
you please answer all
1. When you run a TLC of the reaction in ethyl acetate : hexanes 1:1, the plate below is produced. Give a solvent system that would be expected to produce greater separation and a BRIEF (8 words) justification about your choice. (5 points) 7 6 5 4 3 b. Calculate the R for the bottom spot. (5 points) c. Which compound on the TLC plate is the most polar? (5 points) 2. Why is it...
can you please answer all 1. When you run a TLC of the reaction in ethyl...
can
you please answer all
1. When you run a TLC of the reaction in ethyl acetate : hexanes :: 1:1, the plate below is produced. Give a solvent system that would be expected to produce greater separation and a BRIEF (8 words) justification about your choice. (5 points) 9 10 8 7 LLLLLLL 6 5 4 001 2 3 b. Calculate the R for the bottom spot. (5 points) c. Which compound on the TLC plate is the most...
7.The major product(s) in the following reaction is (are) CH,CH CH, CH OH OCH CHy OCHy...
7.The major product(s) in the following reaction is (are) CH,CH CH, CH OH OCH CHy OCHy CH,CH CHy CH,CH [A] Only1 (B) Only 1IC) A racemic mixture of [1) and [I) D] None of these s. Which of the following represents the order of solvents in increasing polarity from left to A) methanol, acetone, ethyl acetate, hexanes C) acetone, hexanes, methanol, ethyl acetate D) ethyl acetate, methanol, hexanes, acetone 9. In Thin Layer Chromatography (TLC) Re stands for A) Rate...
I need help with my pre and post lab questions. The three compounds below were spotted...
I need help with my pre and post lab questions.
The three compounds below were spotted on a TLC plate and developed to give the TLC plate shown. Which compound corresponds to which spot? Calculate the Rf value for spot B in the TLC plate shown above. When using polarity to determine the relative rates at which organic compounds travel up the TLC plate, we are considering compounds of similar molecular weight. It should also be noted that Rf values...
Hi can someone help me with my pre lab theory questions (1,2,3) on rate of elution...
Hi can someone help me with my pre lab theory questions (1,2,3)
on rate of elution or Rf? Here is some background below. Please
help explain as many as possible (1-3)! I dont really get the
relation ships in this lab, thank you!
1. What factors affect the rate of elution in organic compounds? 2. Explain what is the relationship between polarities of compounds (polar/non- polar compound) and rate of elution (Rf). 3. Explain what is the relationship between solvent...
I am conducting the reaction shown in the balanced equation below. The reaction generally proceeds in...
I am conducting the reaction shown in the balanced equation below. The reaction generally proceeds in the liquid phase, and reactants A and B are both liquid reactants; W is a gas phase reactant which is bubbled through the liquid in order to initiate the reaction. A is very valuable, so I want to do everything I can to get it to react, so I feed the other reactants in excess. The reactor has three outlets; one for the solid...
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...
Based on the Wittig Reaction exp. below, please answer a) and b). In b) you can...
Based on the Wittig Reaction exp. below, please answer a) and
b). In b) you can disregard the part about the IR, just please
interpret and assign protons, shift values, which protons are for
which groups, etc on the HNMR. The % yield was 34%, and MP was
lower than expected (to assist with answering part a). This should
be all the information you need to answer the question.
HNMR
Discuss the percentage yield of the reaction. Explain and provide...
Need help, numbers 3-6 please show work. and fill out table of chemicals for all chemical...
Need help, numbers 3-6 please show work. and fill out table of
chemicals for all chemical used.
calculate mmol in the table as well show work please
and each of these must be listed in its own row. There are 10 column headings: IUPAC name OR common name, structure, CAS number (Chemical Abstract Service number) molecular mass, melting point (if applicable), boiling point (if applicable), solubility (in water, if applicable), density, amounts to be used in the experiment, and the...
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...
can
you please answer all
1. When you run a TLC of the reaction in ethyl acetate : hexanes 1:1, the plate below is produced. Give a solvent system that would be expected to produce greater separation and a BRIEF (8 words) justification about your choice. (5 points) 7 6 5 4 3 b. Calculate the R for the bottom spot. (5 points) c. Which compound on the TLC plate is the most polar? (5 points) 2. Why is it...
can
you please answer all
1. When you run a TLC of the reaction in ethyl acetate : hexanes :: 1:1, the plate below is produced. Give a solvent system that would be expected to produce greater separation and a BRIEF (8 words) justification about your choice. (5 points) 9 10 8 7 LLLLLLL 6 5 4 001 2 3 b. Calculate the R for the bottom spot. (5 points) c. Which compound on the TLC plate is the most...
7.The major product(s) in the following reaction is (are) CH,CH CH, CH OH OCH CHy OCHy CH,CH CHy CH,CH [A] Only1 (B) Only 1IC) A racemic mixture of [1) and [I) D] None of these s. Which of the following represents the order of solvents in increasing polarity from left to A) methanol, acetone, ethyl acetate, hexanes C) acetone, hexanes, methanol, ethyl acetate D) ethyl acetate, methanol, hexanes, acetone 9. In Thin Layer Chromatography (TLC) Re stands for A) Rate...
I need help with my pre and post lab questions.
The three compounds below were spotted on a TLC plate and developed to give the TLC plate shown. Which compound corresponds to which spot? Calculate the Rf value for spot B in the TLC plate shown above. When using polarity to determine the relative rates at which organic compounds travel up the TLC plate, we are considering compounds of similar molecular weight. It should also be noted that Rf values...
Hi can someone help me with my pre lab theory questions (1,2,3)
on rate of elution or Rf? Here is some background below. Please
help explain as many as possible (1-3)! I dont really get the
relation ships in this lab, thank you!
1. What factors affect the rate of elution in organic compounds? 2. Explain what is the relationship between polarities of compounds (polar/non- polar compound) and rate of elution (Rf). 3. Explain what is the relationship between solvent...
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...
Based on the Wittig Reaction exp. below, please answer a) and
b). In b) you can disregard the part about the IR, just please
interpret and assign protons, shift values, which protons are for
which groups, etc on the HNMR. The % yield was 34%, and MP was
lower than expected (to assist with answering part a). This should
be all the information you need to answer the question.
HNMR
Discuss the percentage yield of the reaction. Explain and provide...
Need help, numbers 3-6 please show work. and fill out table of
chemicals for all chemical used.
calculate mmol in the table as well show work please
and each of these must be listed in its own row. There are 10 column headings: IUPAC name OR common name, structure, CAS number (Chemical Abstract Service number) molecular mass, melting point (if applicable), boiling point (if applicable), solubility (in water, if applicable), density, amounts to be used in the experiment, and the...
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...
Most questions answered within 3 hours.
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