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Review Chem 4 1) The \( s \) wiugm 479 hor Iads/Chem\%20435\%20Quiz\%235.pdf Chem 434 Quiz 5 Name: 1. What would you expect to be the major product obtained from the following reaction? 1 II III IV a) I b) II c) III d) IV e) Equal amounts of II and III 2. What would you expect to be the major product obtained from the following reaction? excess ? 1 II III IV y a)? b) II c) III d) IV e) \( V \)

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HALLEL wo Review Chem 4 1) The wiugm 479 hor Reve P/Downloads/Chem\%20435\%20Quiz\%235.pdf Chem 434 Quiz 5 Name: 1. What would you expect to be the major product obtained from the following reaction? I II III IV a)? b) II c) III d) IV e) Equal amounts of II and III 2. What would you expect to be the major product obtained from the following reaction? a) 1 b) II c) III d) IV e) V 3. Which would be the major product(s) of the following reaction?

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4. Predict the all compounds that will be formed from the given reaction below.

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An unknown volatile organic compound has been isolated from the area near the brake pad of an automobile. The IR spectra showed the presence of a carboxylic acid functional group. When injected into a GC, the unknown had a retention time of 10.0 minutes. On the same column octane had a retention time of 9.0 minutes, while nonane had a peak at 11.5 minutes. The column void time was 1.5 minutes. What is the retention index for this compound? (B) Assume these measurements were taken from a column with non-polar PDMS as the stationary phase. Would the calculated value of I likely increase, decrease or stay same if the sample were injected on a polar PEG column

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David Collins

Numerade educator

In an experiment, you are trying to separate a mixture of compounds using normal-phase liquid chromatography. In the first run, with a mobile phase containing 35% toluene and 65% acetonitrile, the peaks eluted quickly and were poorly resolved. To improve the resolution of the peaks, should you increase the amount of toluene in the mobile phase for the next run

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David Collins

Numerade educator

Determine the minimum number of theoretical plates, N , required to achieve baseline separation with a resolution that is desirable for quantitative analysis of two compounds with a separation factor (adjusted relative retention), ?, of 1.050 and retention factors of 5.30 and 5.57. To increase the resolution of the separation, a researcher increased the column length. Will increasing the column length increase the resolution of the separation?