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Problem- What is the molar mass of a nonpolar molecular compound if 5.52 grams dissolved in 36.0 grams of benzene begins to freeze at -1.87 °C? The freezing point of pure benzene is 5.50 °C and the freezing point depression constant, Kfp, is -5.12 °C/m.
Rework your solution from the beginning and check each step carefully.
Question- Perform a retrosynthetic analysis on Prontosil and you will see that it is possible to disconnect the antibiotic two different ways. One method is a disaster (for at least two reasons) and the other works quite nicely.
minor component that can be hydrolyzed to yield eugenol and acetic acid. What is the structure of the minor component, which has the molecular formula C12H14O3
Americium-241 is used in smoke detectors. It has a rate constant for radioactive decay of k = 1.6x10-3yr-1. What is the half-life of this isotope in years? Give your answer to 3 significant figures.
As a food chemist for a major potato chip company, you are responsible for determining the salt content of new potato chips products for the packaging label.
The normal boiling point of bromine is 58.8 C. Given that the vapor pressure pressure of bromine is 75.0 torr at 2.5 C, Calculate the molar enthalpy of vaporization of bromine.
Much commercial hydrochloric acid is prepared by the reaction of concentrated sulfuric acid with sodium chloride:
A professional scientist measures out eaxctly 100.00cm3 of a liquid, and finds that its mass is exactly 80.000g. What is the density (in g/cm3) of the liquid
A salt dissolves in water to form a green solution. A precipitation is formed when the aqueous solution is treated with buffer NH4C/NH3 and thioacetamine.
What is the osmotic pressure of a solution made from dissolving 60.0 of glucose, , in 550 of water at 45.0
Predict the products of the acid-base reaction between acetic acid and methanamine. Draw the molecules or ions and include charges were needed.
How many kilowatt-hours of electricity would be saved? b) How many 2,000-lb tons of SO2 would not be emitted. c) If the utility can sell its rights to emit SO2 at $800 per ton, how much money could the utility earn by selling the SO2 saved by a si..
How many grams of dry NH4Cl needed to be added to 1.50L of a 2.00M solution of ammonia NH3 to prepare a buffer solution that has a pH of 8.60?
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