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Suppose the solubility of your unknown carboxylic acid is 6.8g/ml water at 95C and 0.17g/ml water at 0C. Given that you use 150 ml of water in the recrystallization, calculate how much of the carboxylic acid would remain in your recrystallization solution at 0C.
What is the theoretical yield of aspirin if 190 kg of salicylic acid is allowed to react with 128 kg of acetic anhydride?
Draw the Lewis Dot Structure for both substances b. Determine the electron pair geometry c. Determine the molecular geometry d. Compare the F - C - F bond angle to the H - S - H bond angle e
some reactions that are predicted by their sign deltag to be spontaneous at room temperature do not proceed at a
A 2.9 m solution of methanol (CH3OH) in water has a density of 0.984 g/ml. What are the a) mass percent, b) molarity, and c) mole fraction of methanol in this solution?
How much heat is required to vaporize 18.5g of water at 100c. The heat of vaporization of water at 100c is 40.7kj/mole.
Consider a compound that undergoes sublimation at 125 degrees Celsius and a pressure of one atm. Which of the following could be a heating curve appropriate for heating
The weight of an object is the product of its mass,m , and the acceleration of gravity,g (where g= 9.8m/s^2 ). If an object's mass is 10kg, what is its weight
1.00oz of gold (density=19.3g/mol) can be hammered into a sheet which would cover a 1.00*10^2 ft2 area. How thick should a sheet be in centimeters
calculate the approximate volume of a 0.600 mol sample of gas at 15.0 degrees Celcius and a pressure of 1.10 atm.
Phenacetin has the structure shown. Write an equation for its preparation, staring from 4-ethoxyaniline.
Methyl nitrite, CH3NO2, a gas at room temperature, is reacted with phenol, C6H6O, to give nitrophenol, in a reaction shown below.
A single cell has a radius of 15 um, a volume of 14.1 picoliter, and a mass of 15.5 nanograms. what is the density of this cell in g/mL
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