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the R isomer of limonene has an optical rotation, alpha,of +123 degrees the S isomer has an optical rotation, alpha, of -123 degrees. IF the observed rotation of a mixture of the R and S isomer resulted in a alpha of 109 degrees, what are the percentages of the isomers presents? What is the ee
Find out the eq molar concentration of SCN- in the system.( Kc=[FeNCS2+]/[Fe3+][SCN-] =271.5)
What range of magnetic field strength would be required to cover the mass range between 16 and 625, for singly charged ions, if the accelerating voltage is held constant?
The production capacity for acrylonitrile (C3H3N) in the United States is over 2 billion pounds per year. Acrylonitrile, the building block for polyacrylonitrile fibers and a variety of plastics, is produced from a gaseous propylene, ammonia, and ..
What is the pH of the resulting solution when 25 mL of 0.10 M NaOH is added to 25 mL of 0.25 M HNO3?
Bisphenol A is an important component of many polymers, including polycarbonates, polyuethanes, and epoxy resins. It is synthesized from phenol and acetone with HCl as a catalyst. Propose a mechanism.
Calculate the dilution factor for all 7 test test tubes. Show all work/calculations. 0.1 ml of the solution from the serial dilution 10^-4, 10^-5 and 10^-6 was pipetted onto three separate agar plates.
oxygen is burned completely, 3.86 grams of CO2 and 1.26 grams of H2O are produced. What is the empirical formula of the compound?
if a gas 25.0 c occies 3.60 liters at pressure of 1.00 atm, what will be its volume at a pressure of 2.50 atm
Find the temp (in K) above which a reaction with a delta H of 123.0 kj/mol and a delta S of 90.0 J/k*mol becomes spontaneous.
A 25.0-mL aliquot of vinegar was diluted to 250 mL on a volumetric flask. Titration of 50.0-mL aliquots of the diluted solution required an average of 34.88 mL of 0.09600 M NaOH. Express the acidity of the vinegar in terms of the percentage (w/v) ..
A 20L vessel is filled with 1.00 mol of ammonia. NH3. What percent of ammonia dissociates to the elements if equilibrium is reached at 345C
Write the formula for ionic compound formed from acetate anion ch3coo and each cation. Na, Ba, Al, Ni
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