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Draw and/or describe everything that can assumed/known about the below peaks (e.g. "it's a -CH2-, attached to either a C=C or C=O, with a CH neighbor on the other side"); note that each peak should be considered individually and they are not part of the same molecule.
a. 3.4ppm, integral of 3, singlet
b. 9.2ppm, integral of 1, triplet
c. 1.6ppm, integral of 2, sextet (6 peaks)
d. 2.4ppm, integral of 1, septet (7 peaks)
e. 4.1ppm, integral of 1, broad singlet
A solvent and solution are separated by a semipermeable membrane how does the height of the column of solution change if the concentration of the salt is increased?
A gas mixture with a total pressure of 770 contains each of the following gases at the indicated partial pressures: , 265 ; , 134 ; and , 159 . The mixture also contains helium gas. What is the partial pressure of the helium gas?
The pH of a household cleaning solution is 11.64. This cleanser is an aqueous solution of ammonia with a density of 1.00 g/mL. What is the mass percentage of ammonia in the solution
A sample of (S)-2-butanol has an observed rotation of +1.03°. The measurement was made with a 1.0 M solution of (S)-2-butanol in a sample container that is 10 cm long. What is the specific rotation [?]D, for (S)-2-butanol
We have learned that valence bond theory helps us to predict s and p bonding in molecules. All of the following statements about molecular bonding are true, but which statement best summarizes the most basic premise for bonding in a molecule?
In the production of printed circuit boards for the electronics industry, a 0.235 mm layer of copper is laminated onto an insulating plastic board. Next a circuit pattern made of a chemically resistant polymer is printed on the board
A helium-filled weather balloon has a volume of 815 L at 22 oC and 752 mmHg. It is released and rises to an altitude of 7.16 km, where the pressure is 364 mm Hg and the temperature is -25oC
What is the theoretical economy of heating A mixture of sodium carbonate and sodium bicarbonate. sodium carbonate is the desired product and water and carbon dioxide are the undesirable wastes .
a nitrile (RCN) is converted to what functional group when treated with LiAlH4 followed be an aqeous workup a carboxylic acid is converted to what functional group when treated with LAH followed by an aid workup
What and why structural features do cyanide and thiamine have in common that makes them both capable of catalyzing the benzoin condensation
the density of liquid water at 0 degrees c is 0.9987 gcm cubed the density of ice at this same temperature is 0.917 gcm
Find the concentration of Pb2 in 0.0010 M KI saturated with PbI2. Include activity coefficients in your solubility-product expression.
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