Consider the GC chromatogram below. Which compound is more polar, compound A or compound B?
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Consider the GC chromatogram below. Which compound is more
polar, compound A or compound
B?
Question...
Examine the GC Chromatogram below in the page below. The GC was conducted at 85 °C...
Examine the GC Chromatogram below in the page below. The GC was conducted at 85 °C with no ramping of temperatures on a SiO2 column. analysis of the mixture used in this GC. The molecules that were used Provide an in this GC experiment were the following: 139.4°C 175-1'F 80.1 herzcnd 78. 372 P-Yglenc CH3 Toulene CH3 H3C OH CH3 CHs CH3 Cнз 5 7 Hас CHн, 0cdane (r,5-Amethylhexe 100.1-104.4 Label the GC peaks from A-F (left to right) and...
5. Using the GC mentioned in question 4 and the values listed on the chromatogram for...
5. Using the GC mentioned in question 4 and the values listed on the chromatogram for the height and width (at half height) of each peak, calculate the percent composition for each product (A, B and C). Be sure to show your work. (8 points) 6. The products corresponding to each peak on the GC are the ortho, meta, and para isomers of the nitrated product shown in the scheme for reaction 1. These isomers were isolated, and a proton...
looking for a check of my work, is this correct? if not please let me know....
looking for a check of my work, is this correct? if not please
let me know. thanks!
1. (23 Total Points) Gas Chromatography a. (5 pts) Circle the BEST answer for the question below. Of the compounds listed below, which would you expect to eluto last from a nonpolar gas chromatographic column? 3 • n-Propanol (CH3CH2CH2OH) Polar Polar = 7* (mPoland 1. Methanol (CH3OH) Polar NON-Polar = 2nd 4. n-Butanol (CH3CH2CH2CH2OH) ВР 1st Low C . n-Pentanol (CH3CH2CH2CH2CH2OH) and Higher...
Post-Laboratory Questions Aspirin adnil tuleno Which compound turned out to be the most polar? The least polar? Do...
Post-Laboratory Questions Aspirin adnil tuleno Which compound turned out to be the most polar? The least polar? Do experimental results agree with your theoretical predictions? If not, why? 2. What would a chromatogram look like if a less polar developing solvent were used 3. Consider the following TLC plate of compounds A, B, and C developed in hexanes: solvent front starting line a) Determine the R values of compounds A, B, and C run on a silica gel TLC plate...
Question 49 2 pts Consider the following substances and their polarities: A-nonpolar, B - nonpolar, C-polar,...
Question 49 2 pts Consider the following substances and their polarities: A-nonpolar, B - nonpolar, C-polar, D-polar. It is true that: OC is more soluble in D than in A. O C is more soluble in A than in D. D is more soluble in B than in C. O A is more soluble in C than in B.
Please help 2. Consider the TLC plate shown below that was done on silica gel using...
Please help
2. Consider the TLC plate shown below that was done on silica gel using a solvent mixture of 4:1 hexane/EtoAc as the eluent. 4:1 Hexane:EtOAC marked solvent front Spot B Spot A A origin (a) Which of the two organic compounds labeled A and B is less polar? (b) Calculate the Rf value of compound B. (c) How would the following changes affect the Rf values of A and B? i. Change to a more polar solvent mixture...
14. The chromatogram below was prepared using HPL.C with a polar stationary phase and OCH CH:NH2),...
14. The chromatogram below was prepared using HPL.C with a polar stationary phase and OCH CH:NH2), and pentanol (CsHiOH) polar mobile phase. (a) If the compounds in the sample were octanol (CsHi-OH), benzene (CHo), ethanolamine (H ( and please correlate the numbered peaks below with the compounds. (b) Please describe how you might improve the resolution of compounds 2 and 3 without changing the stationary phase. (8 points) 0.8 s 0.4 03 0.2 0.1 10 12 16 18 20 Time...
am i correct on these questions? if not please let me know how i can improve...
am i correct on these questions? if not please let me know how
i can improve them. thanks!
c. (6 pts) A certain sample was run through a GC. and the chromatogram given below was produced What information can you determine about the sample that produced this gas chromatogram you say about the component(s) in the sample? Be sure to include as much relevant information as you can for full credit. lover Be or SA Different Info Difference in Retention...
Which compound is more polar, and why? 앤 20 HO
Which compound is more polar, and why?
앤 20 HO
6) Plate A, below, represents the TLC chromatogram of a compound run in hexanes. The same...
6) Plate A, below, represents the TLC chromatogram of a compound run in hexanes. The same compound was then spotted on a large TLC plate and again run in hexanes Which TLC plate, B, C, or D, correctly represents how far the compound would run on the longer plate? solvent front solvent - front plate A plate B plate plate D
Examine the GC Chromatogram below in the page below. The GC was conducted at 85 °C with no ramping of temperatures on a SiO2 column. analysis of the mixture used in this GC. The molecules that were used Provide an in this GC experiment were the following: 139.4°C 175-1'F 80.1 herzcnd 78. 372 P-Yglenc CH3 Toulene CH3 H3C OH CH3 CHs CH3 Cнз 5 7 Hас CHн, 0cdane (r,5-Amethylhexe 100.1-104.4 Label the GC peaks from A-F (left to right) and...
5. Using the GC mentioned in question 4 and the values listed on the chromatogram for the height and width (at half height) of each peak, calculate the percent composition for each product (A, B and C). Be sure to show your work. (8 points) 6. The products corresponding to each peak on the GC are the ortho, meta, and para isomers of the nitrated product shown in the scheme for reaction 1. These isomers were isolated, and a proton...
looking for a check of my work, is this correct? if not please
let me know. thanks!
1. (23 Total Points) Gas Chromatography a. (5 pts) Circle the BEST answer for the question below. Of the compounds listed below, which would you expect to eluto last from a nonpolar gas chromatographic column? 3 • n-Propanol (CH3CH2CH2OH) Polar Polar = 7* (mPoland 1. Methanol (CH3OH) Polar NON-Polar = 2nd 4. n-Butanol (CH3CH2CH2CH2OH) ВР 1st Low C . n-Pentanol (CH3CH2CH2CH2CH2OH) and Higher...
Post-Laboratory Questions Aspirin adnil tuleno Which compound turned out to be the most polar? The least polar? Do experimental results agree with your theoretical predictions? If not, why? 2. What would a chromatogram look like if a less polar developing solvent were used 3. Consider the following TLC plate of compounds A, B, and C developed in hexanes: solvent front starting line a) Determine the R values of compounds A, B, and C run on a silica gel TLC plate...
Question 49 2 pts Consider the following substances and their polarities: A-nonpolar, B - nonpolar, C-polar, D-polar. It is true that: OC is more soluble in D than in A. O C is more soluble in A than in D. D is more soluble in B than in C. O A is more soluble in C than in B.
Please help
2. Consider the TLC plate shown below that was done on silica gel using a solvent mixture of 4:1 hexane/EtoAc as the eluent. 4:1 Hexane:EtOAC marked solvent front Spot B Spot A A origin (a) Which of the two organic compounds labeled A and B is less polar? (b) Calculate the Rf value of compound B. (c) How would the following changes affect the Rf values of A and B? i. Change to a more polar solvent mixture...
14. The chromatogram below was prepared using HPL.C with a polar stationary phase and OCH CH:NH2), and pentanol (CsHiOH) polar mobile phase. (a) If the compounds in the sample were octanol (CsHi-OH), benzene (CHo), ethanolamine (H ( and please correlate the numbered peaks below with the compounds. (b) Please describe how you might improve the resolution of compounds 2 and 3 without changing the stationary phase. (8 points) 0.8 s 0.4 03 0.2 0.1 10 12 16 18 20 Time...
am i correct on these questions? if not please let me know how
i can improve them. thanks!
c. (6 pts) A certain sample was run through a GC. and the chromatogram given below was produced What information can you determine about the sample that produced this gas chromatogram you say about the component(s) in the sample? Be sure to include as much relevant information as you can for full credit. lover Be or SA Different Info Difference in Retention...
Which compound is more polar, and why?
앤 20 HO
6) Plate A, below, represents the TLC chromatogram of a compound run in hexanes. The same compound was then spotted on a large TLC plate and again run in hexanes Which TLC plate, B, C, or D, correctly represents how far the compound would run on the longer plate? solvent front solvent - front plate A plate B plate plate D
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