check your gas chromatogram for the presence of compounds other than isopentyl acetate. Explain the presence...

check your gas chromatogram for the presence of compounds other than isopentyl acetate. Explain the presence of any additional compounds.

Expert Solution

Gas chromatography technique is used in separation/identification of organic compound in its gaseous phase ,based on its volatility measure and absorption by the column packing (stationary phase) .The compound is injected into the column with a gas stream moving up the column at a set speed,which ultimately come out of the column at a fixed .constant time called its retention time for a pure compound.However,any impurity or other compound eluates at different times, that can be seen as other peaks than the principal peak of the (analyte) inn the chromatogram.This difference of retention time occurs due to difference in molecular masses and polarity of the compounds ,as heavier ones have lower pace and greater retention times.

Standard compounds of known retention time is injected into the column firstly and their retention time noted,to compare with that of the analyte or test compound.

The presence of compounds other than isopentyl acetate cn be detected from various other peaks present in the gas chromatogram, apart from the principal peak with retention time same as that of standard isopentyl acetate.

queen_honey_blossom answered 2 years ago

Isopentyl Acetate . What would happen if you added a little bit of water to your...

Isopentyl Acetate . What would happen if you added a little bit of water to your reaction during the reflux? Explain your answer. 2. What was the purpose of each extraction step that you performed during this experiment? 3. Suppose that 1.00 g of 3-methyl-1-butanol was reacted with 1.00 g of acetic acid and that 0.37 mL of isopentyl acetate was obtained as product. Calculate the percent yield for this reaction. Show your calculations. 4. Write a mechanism for the...

Organic Chemistry: Intro to Gas Chromatography 6 known compounds are: isopropyl acetate, ethyll acetate, methanol, ethanol,...

Organic Chemistry: Intro to Gas Chromatography 6 known compounds are: isopropyl acetate, ethyll acetate, methanol, ethanol, 2-butanone, 2-pentanone 1. Discuss the retention times of the six known compounds with regards to their molecular weights. Describe any pattern that emerges. 2. Discuss the retention times of the six known compounds with regard to their boiling points. Describe any pattern that emerges. 3. Identify the compounds that are present in your unknown mixture. Support your identification. For the unknown, I got three...

Isopentyl Acetate 1. What would happen if you added a little bit of water to your...

Isopentyl Acetate 1. What would happen if you added a little bit of water to your reaction during the reflux? Explain your answer. 2. What was the purpose of each extraction step that you performed during this experiment? 3. Suppose that 1.00 g of 3-methyl-1-butanol was reacted with 1.00 g of acetic acid and that 0.37 mL of isopentyl acetate was obtained as product. Calculate the percent yield for this reaction. Show your calculations. 4. Write a mechanism for the...

(a) Explain the major differences between producer gas and water gas. (b) Explain why the presence...

(a) Explain the major differences between producer gas and water gas. (b) Explain why the presence of even a small amount of H2 can substantially expedite the reaction of CO-O2 mixture by using chemical kinetics analysis.

1) Order the following compounds in order of elution in gas chromatography. Explain your reasoning. (Label “1stEluted”,...

1) Order the following compounds in order of elution in gas chromatography. Explain your reasoning. (Label “1stEluted”, 2ndEluted, and so on). Mobile Phase – Air (Flow Rate = 25 mL/min), Stationary Phase – poly(dimethylsiloxane), Oven Temperature – 90 oC. 1-butanol, 1-pentanol, 1-hexanol, pentane b) How would a gradient elution (55 oC – 120 oC) impact the chromatogram?

Other than factors like tourism, the multi-cultural nature of the city, and the presence of large...

Other than factors like tourism, the multi-cultural nature of the city, and the presence of large corporations, how can you see L.A.'s integration with the larger global economy? Provide some examples of things you see as you move around this vast metropolis. What can you point to that shows our significant global involvement?

Describe/recognize how some bacteria can get ATP energy from other organic compounds other than glucose

Check out the World Bank's Innovation Policy Platform. Select a country to analyze (other than the...

Check out the World Bank's Innovation Policy Platform. Select a country to analyze (other than the U.S.!). How is their culture of innovation? Does the country have the correct institutions to enable and encourage innovation? What policies have they passed recently to change things?

During your lunchtime, which you usually spend at the university canteen in the presence of other...

During your lunchtime, which you usually spend at the university canteen in the presence of other students, one particular accounting student who was having difficulty with the textbook complained that he did not understand which costs were to be regarded as part of the acquisition cost of land, which costs were to be attributed to buildings under construction, and which were to be treated as an expense. Explain the basic principles to be followed. Are there any difficulties in applying...

Using a real-world company (other than Sysco), explain the causes of economies of scale for your...

Using a real-world company (other than Sysco), explain the causes of economies of scale for your company.

Question