Calculate the area beneath peak A. Assume each grid square is 1 cm × 1 cm.
area under the peak = peak height * width at the half height
Height of the peak = 8 squares = 8 cm
width at the half height = 1.1 cm (from the graph)
area = 8 cm * 1.1 cm = 8.8 cm^2
Calculate the area beneath peak A. Assume each grid square is 1 cm × 1 cm....
Need help please. Experiment Five: Simple and Fractional Distillation 1. Calculate the area of the following peak coming off of a GC. 12 2. If you have a binary mixture of carbon tetrachloride and tert-butyl alcohol, which compound should distill over first and why? Be sure to draw out both structures and look up each of their boiling points. 3. For the binary mixture of carbon tetrachloide and tert-butyl alcohol from above, what distillation technique would be most suitable and...
1) Calculate the heat through a glass window that is 30.0 cm*150 cm in area and 1.20 mm thick. Assume the temperature onthe inside of the window is 25.0�C while the outside temperature is 8.00�C. 2)Five hundred joules of heat is absorbed by a system that does 200 J of work on its surroundings. What is the change in the internal energy of the system? 3)An ideal gas expands isothermally, performing 8.80 kJ of work in the process. Calculate the heat absorbed during the expansion. 4)A gas contained in a cylinder that has a piston is kept at a constant pressure of 2.80*10^5Pa. The gas expands from0.500 m^3to 1.50 m^3 when 300 kJ...
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...
1) Calculate the Rf value of a spot that travels 5.7 cm, with a solvent front that travels 13 cm. 2) A student spots an unknown sample on a TLC plate and develops it in pentane solvent. Only one spot, for which the Rf value is 0.05, is observed. Is the unknown material a pure compound? What can be done to verify the purity of the sample using thin-layer chromatography? 3) You try to synthesize n-hexyl bromide as a product...
I need help with questions 5, 6, & 7. The FTIR and NMR is provided. I also need help creating a reaction mechanism using the following: Starting material: 1,7-Dimethyl-heptanedioate Solvent: Diethyl ether Reagent: sodium methoxide Product: 3-oxo-cyclohexane carboxylic acid methyl ester THANK YOU!!!!! Ö 11-11: Dieckmann Reaction For this assignment, the target compound that you should synthesize is 2-oxo-cyclohexane carboxylic acid methyl ester.This is an intramolecular carbonyl addition variation. Examine the product and determine which ester is the nucleophile and...
Only need help with 5,6,7 and mechanism FTIR and NMR Spectra After completing a reaction and working up the products, it is still necessary to confirm that the correct product was formed. The most common tools used for this analysis are Fourier Transform Infrared (FTIR) and Nuclear Magnetic Resonance (NMR) spectroscopy. In the virtual laboratory, 'H and C NMR spectra are available. Details on interpreting FTIR and NMR spectra are found in your textbook. Your instructor may or may not...
Homework week 6 1. How do gaseous, liquid, and solid methanol (CHO) compare in each of the following features: (a) density; (b) the space between the molecules; (c) the attractive force between the molecules? 2. Convert each pressure unit to the indicated unit. a. 3.0 atm to mm Hg b. 720 mm Hg to psi c. 424 mm Hg to atm 3. A sample of nitrogen gas has a volume of 15.0 mL at a pressure of 0.50 atm. What...
I need help with questions 5, 6, & 7. The FTIR and NMR is provided. I also need help creating a reaction mechanism using the following: Starting material: methyl acetate. Solvent: diethyl ether Reagent: sodium methoxide Product: methyl acetoacetate THANK YOU!!!!! 11-8: Claisen Condensation - 1 For this assignment, the target compound that you should synthesize is methyl acetoacetate.This is another carbonyl addition variation. Examine the product and determine which ester is the nucleophile and which is the electrophile. Keep...