Solution
A. (iii) is best chromatogram because all peaks are separate in this chromatogram.
2. General Problems 6. In the Figures below which is the best chromatogram? (a) If we...
3.) A series of chromatographic peaks are referred to as a chromatogram. a.) Describe the general shape of a chromatographic peak? b.) How does the term resolution relate to a chromatographic separation? Include as part of your answer the two factors that determine resolution? 4.) List the five basic components of all liquid chromatograph systems
The chromatogram shows the separation of components in an over-the-counter pain reliever. Calculate the number of theoretical plates, N, for the peaks of acetaminophen and caffeine. plates acetaminophen: N- caffeine: N- C caffeine: N 3 32032plates Calculate the resolution, R, between acetaminophen caffeine. Peak 1 2 3 4 Component acetaminophen caffeine benzoic acid aspirin 4 (min) 3.97 6.15 9.73 14. 8 11/2 (min) 0.12 0.21 0.35 0 .73
The chromatogram shows the separation of components in an over-the-counter pain reliever. Calculate the number of theoretical plates, N, for the peaks of caffeine and benzoic acid. caffeine: N = 4751 plates 02 10 12 14 16 benzoic acid: N = 1. 8 min 6063 plates Peak Calculate the resolution, R, between caffeine and benzoic acid. 2 3 4 Component acetaminophen caffeine benzoic acid aspirin tr (min) 3.97 6.15 9.73 14.8 W1/2 (min) 0.12 0.21 0.35 0.73 R=1.77 R= 7.77
Spectroscopy Problems For each problem, you must: 1) Calculate the degree of unsaturation. 2) Assign the principal IR absorption bands above 1500 cm-1 3) Draw the structure of the compound 4) Label the protons on your structure with letters and assign them to peaks on the NMR spectrum (see the example below). в OHD 3.5- 3. 2.5 1.0 PPM 0.5 Each problem contains the formula of the compound, the IR spectrum (with axes in cm vs. % transmission), and the...
Spectroscopy Problems For each problem, you must: 1) Calculate the degree of unsaturation. 2) Assign the principal IR absorption bands above 1500 cm-1 3) Draw the structure of the compound 4) Label the protons on your structure with letters and assign them to peaks on the NMR spectrum (see the example below). в OHD 3.5- 3. 2.5 1.0 PPM 0.5 Each problem contains the formula of the compound, the IR spectrum (with axes in cm vs. % transmission), and the...
Spectroscopy Problems For each problem, you must: 1) Calculate the degree of unsaturation. 2) Assign the principal IR absorption bands above 1500 cm-1 3) Draw the structure of the compound 4) Label the protons on your structure with letters and assign them to peaks on the NMR spectrum (see the example below). в OHD 3.5- 3. 2.5 1.0 PPM 0.5 Each problem contains the formula of the compound, the IR spectrum (with axes in cm vs. % transmission), and the...
Problem 2. Determining the Relative Percent Composition by GLC (6p). Below left is a chromatogram of an unknown different from that of Problem 1. The associated peak table is given below right. Using the peak table data only, calculate the relative percent composition of the unknown. That is, determine the percent of compounds A, B, C and D in the unknown sample. Show all work. GLC Peak Table for Problem 2 Compoun Area Peak Retention Time (min) Intensity (WV) A...
help needed with this problem set
Refer to the HPLC chromatograms below for a 5-component mixture of organic acids for the following questions. The specific HPLC parameters for chromatogram A (top) are described in the figure title and the insert. You only need the lecture notes and/or your personal experience to answer those questions. Mobile phase: 30 % MeCN, 70 % TFA, 0.1 M (pH 2.0) low rate: 1.0 mL/min 2Benzok Acid Maleic Aci 1. (a) Which component has the...
Pls Solve 1 and 4 only!!
PROBLEMSIn each of Problems 1 through 6: (a) Find the general solution of the given system of equations and describe the behavior of the solution as t → 00 (b) Draw a direction field and plot a few trajectories of the system. 3 -2 2 -2 2, x' = 3 -2
PROBLEMSIn each of Problems 1 through 6: (a) Find the general solution of the given system of equations and describe the behavior of...
2. A common situation that arises when we collect experimental data is that a simple curve can be fitted through a selection of data points when we only have a small data sample, but as we continue to collect further data, we can no longer fit the data exactly and must instead look for a curve of best fit. Consider, for instance, the equation y = 6 − 9x + 3x 2 and the data points (0, 6), (1, 0)...