what is the raw and adjusted retention times for Cyclohexane,Toluene,Acetone and 1- and 2- Propanol In...
what is the raw and adjusted retention times for Cyclohexane,Toluene,Acetone and 1- and 2- Propanol
In addition to the solvent injection of approximately 0.05 to 0.2 μL of the standard
Homework Answers
Order of moving the spots on TLC plate: cyclohexane > toluene > acetone > 2-propanol > 1-propanol
Therefore, the order of retention times: cyclohexane < toluene < acetone < 2-propanol < 1-propanol
Hence, cyclohexane elutes first (least elution time) and 1-propanol last (highest elution time) from the column.
Add Answer to:
what is the raw and adjusted retention times for
Cyclohexane,Toluene,Acetone and 1- and 2- Propanol
In...
1.In the following chromatogram, a mixture of pyridine (1), phenol (2), and toluene (3) was separated....
1.In the following chromatogram, a mixture of pyridine (1),
phenol (2), and toluene (3) was separated. Determine the retention
times of the components. Given this order of elution, would you
expect the stationary phase to be polar or non-polar?
Explain why the toluene peak is much shorter than the other two
peaks even though it is approximately the same concentration.
2. Stationary phases come in different varieties. Which of the
two analytes listed for each stationary phase has the greater...
What are the chemical equation for these reactions: 1) sulfonation of toluene 2)permanganate oxidation of isobutylbenzene...
What are the chemical equation for these reactions: 1) sulfonation of toluene 2)permanganate oxidation of isobutylbenzene 3)nitration of anisole 4) bromination of aniline 5)blue light-catalyzed bromination of sec-butylbenzene 6)hydration of acetone 7)synthesis of propanone from an alcohol 8)addition of 3 moles H2 to benzene 9)formation of a cyanohydrin from 2-butanone 10)reaction of acetone with two moles CH3OH
11. What is the product of this reaction? acetone A) 2-hydroxy-2-methylpropanoic acid B) 2-cyano-2-propanol C) 1-amino-2-hydroxy-2-methylpropane...
11. What is the product of this reaction? acetone A) 2-hydroxy-2-methylpropanoic acid B) 2-cyano-2-propanol C) 1-amino-2-hydroxy-2-methylpropane D) 2-hydroxy-2-methylbutanoic acid E) none of the above 1) HCN 2) H20/4+ / heat
How would you use separation techniques to recover acetone, 4-carboxyazobenzene, 1-propanol, and cumene in a laboratory...
How would you use separation techniques to recover acetone,
4-carboxyazobenzene, 1-propanol, and cumene in a laboratory
experiment.
Techniques learned are: Solvent recrystallization, thin layer
chromatography, column chromatography, liquid-liquid extraction,
distillation. (Would prefer not to do a distillation as this times
a long time).
Your company has designed a new process to dye rubbers. The process uses cumene to swell the material allowing the organic dye 4-carboxyazobenzene to penetrate more easily. The resulting rubber is able to retain its color, and...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent ion= 2.05Smin low Peak 1 Compound Name: athanol Rapesnal utanal aclapeatanal 4.755min oilng 6.895min .230 min Peak 2 Compound Name: Peak 3 Compound Name: Peak 4 Compound Name: GC#:1 Ketone Standard Mixture Retention time 2.575un Peak 1 Compound Name: Acclono Butanon a Pentanone 2tHex anon Peak 2 Compound Name: min Peak 3 Compound Name: 615 min 1D. 307 min Peak 4 Compound Name: Part...
what are the starting matrial, solvent, and reagent to use to get 1-phenyl-1-propanol? Grignard Addition VCL...
what are the starting matrial, solvent, and reagent to use to
get 1-phenyl-1-propanol?
Grignard Addition VCL 10-1: Grignard Addition - 1 For this assignment, the target compound that you should synthesize is 1-phenyl-1-propanol. This is an organometallic addition reaction. Examine the product and identify potential bonds that may be formed. Keep in mind the mechanism and the need to quench the reaction with acid to liberate the neutral product. Synthesis Procedures 1. Start Virtual ChemLab and select Grignard Addition -/...
All Questions are in regards to Gas Chromatography 1. Explain what injection splitting is and why...
All Questions are in regards to Gas Chromatography 1. Explain what injection splitting is and why it is necessary to use in this and all of our experiments. 2. What are adjusted and corrected retention data? (See text book and other references if needed) 3. Do you expect peak shapes to be the same for all the standards on column A? Assume column A is non polar such as polymethylsiloxane. Explain 4. What is and what is the advantage of...
Aldehyde: ZPA Ketone: BCK Amount of material started with: 2 mL of aldehyde and 0.5 mL...
Aldehyde: ZPA
Ketone: BCK
Amount of material started with: 2 mL of aldehyde and 0.5 mL
of Ketone
Recrystallized Mass: 1.53 g
Melting Range: 196-200 C
Recrystallization Solvent: 9:1 Ethanol/Acetone
Aldehydes ketones Cyclopentanone Cyclohexanone Acetone Benzaldehyde p-tolualdehyde p-anisaldehyde Cinnamaldehyde 113 °C 175 °C 129-130 C 144 °C 189 °C 235-236 °C 212 °C 225 °C 118°C 170 °C 159 °C 180°C 4-methyl cyclohexanone 98-99 °C 113-113.5 °C 141-142 °C 163-164 °C 6.1724 7.6069 7.5891 Z-8, CDC13 Z-B, CDC13 7.2839 2724...
I did an experiment where I synthesized 2-phenyl-2-propanol using the grignard reaction. please help me answer these lab questions Reagents Moles of Reagent 0.00142 moles (0.224 g)bromoben...
I did an experiment where I synthesized
2-phenyl-2-propanol using the grignard reaction. please help me
answer these lab questions
Reagents Moles of Reagent 0.00142 moles (0.224 g)bromobenzene 0.00712 mol (0.173 g) 2 mL of THF (n/a moles) tetrahydrofuran 0.00142 mol (0.083g, 0.11mL) acetone, HPLC grade, anh Reagent Name FW 157.75 24.31 n/a 58 Comments Mg powder grind before using must be anhydrous must be anhydrous Pre-Lab Assignment: 1. Determine the volume (mL) of bromobenzene needed for the experiment. Obtain the...
1. What is the EXPECTED RETURN for Asset A and B? 2.What is the STANDARD DEVIATION for Asset A and B? State...
1. What is the EXPECTED RETURN for Asset A and B?
2.What is the STANDARD DEVIATION for Asset A and B?
State of Economy Probability Asset A of State of Rate of Economy Return 0.3 0.13 0.5 0.06 0.2 -0.05 Asset B Rate of Return 0.08 0.05 -0.01 Boom Normal Recession
Show transcribed image text State of Economy Probability Asset A of State of Rate of Economy Return 0.3 0.13 0.5 0.06 0.2 -0.05 Asset B Rate of Return 0.08...
1.In the following chromatogram, a mixture of pyridine (1),
phenol (2), and toluene (3) was separated. Determine the retention
times of the components. Given this order of elution, would you
expect the stationary phase to be polar or non-polar?
Explain why the toluene peak is much shorter than the other two
peaks even though it is approximately the same concentration.
2. Stationary phases come in different varieties. Which of the
two analytes listed for each stationary phase has the greater...
11. What is the product of this reaction? acetone A) 2-hydroxy-2-methylpropanoic acid B) 2-cyano-2-propanol C) 1-amino-2-hydroxy-2-methylpropane D) 2-hydroxy-2-methylbutanoic acid E) none of the above 1) HCN 2) H20/4+ / heat
How would you use separation techniques to recover acetone,
4-carboxyazobenzene, 1-propanol, and cumene in a laboratory
experiment.
Techniques learned are: Solvent recrystallization, thin layer
chromatography, column chromatography, liquid-liquid extraction,
distillation. (Would prefer not to do a distillation as this times
a long time).
Your company has designed a new process to dye rubbers. The process uses cumene to swell the material allowing the organic dye 4-carboxyazobenzene to penetrate more easily. The resulting rubber is able to retain its color, and...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent ion= 2.05Smin low Peak 1 Compound Name: athanol Rapesnal utanal aclapeatanal 4.755min oilng 6.895min .230 min Peak 2 Compound Name: Peak 3 Compound Name: Peak 4 Compound Name: GC#:1 Ketone Standard Mixture Retention time 2.575un Peak 1 Compound Name: Acclono Butanon a Pentanone 2tHex anon Peak 2 Compound Name: min Peak 3 Compound Name: 615 min 1D. 307 min Peak 4 Compound Name: Part...
what are the starting matrial, solvent, and reagent to use to
get 1-phenyl-1-propanol?
Grignard Addition VCL 10-1: Grignard Addition - 1 For this assignment, the target compound that you should synthesize is 1-phenyl-1-propanol. This is an organometallic addition reaction. Examine the product and identify potential bonds that may be formed. Keep in mind the mechanism and the need to quench the reaction with acid to liberate the neutral product. Synthesis Procedures 1. Start Virtual ChemLab and select Grignard Addition -/...
Aldehyde: ZPA
Ketone: BCK
Amount of material started with: 2 mL of aldehyde and 0.5 mL
of Ketone
Recrystallized Mass: 1.53 g
Melting Range: 196-200 C
Recrystallization Solvent: 9:1 Ethanol/Acetone
Aldehydes ketones Cyclopentanone Cyclohexanone Acetone Benzaldehyde p-tolualdehyde p-anisaldehyde Cinnamaldehyde 113 °C 175 °C 129-130 C 144 °C 189 °C 235-236 °C 212 °C 225 °C 118°C 170 °C 159 °C 180°C 4-methyl cyclohexanone 98-99 °C 113-113.5 °C 141-142 °C 163-164 °C 6.1724 7.6069 7.5891 Z-8, CDC13 Z-B, CDC13 7.2839 2724...
I did an experiment where I synthesized
2-phenyl-2-propanol using the grignard reaction. please help me
answer these lab questions
Reagents Moles of Reagent 0.00142 moles (0.224 g)bromobenzene 0.00712 mol (0.173 g) 2 mL of THF (n/a moles) tetrahydrofuran 0.00142 mol (0.083g, 0.11mL) acetone, HPLC grade, anh Reagent Name FW 157.75 24.31 n/a 58 Comments Mg powder grind before using must be anhydrous must be anhydrous Pre-Lab Assignment: 1. Determine the volume (mL) of bromobenzene needed for the experiment. Obtain the...
1. What is the EXPECTED RETURN for Asset A and B?
2.What is the STANDARD DEVIATION for Asset A and B?
State of Economy Probability Asset A of State of Rate of Economy Return 0.3 0.13 0.5 0.06 0.2 -0.05 Asset B Rate of Return 0.08 0.05 -0.01 Boom Normal Recession
Show transcribed image text State of Economy Probability Asset A of State of Rate of Economy Return 0.3 0.13 0.5 0.06 0.2 -0.05 Asset B Rate of Return 0.08...
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