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Ethyl p-aminobenzoate was produced by the H2SO4 acid-catalyzed, reversible reaction of paminobenzoic acid and ethyl alcohol, as depicted below. Briefly explain why one reactant (the one that's cheaper and more easily separated during work-up) was used in excess.
how many calories are used to heat a 50g sample of water from 8.1 degrees celius to 27.4 degrees celcius?
Establish the equilibrium K values for a distillation system to separate diisopropyl benzene from a mixture of heavy aromatics, the major component in the heavy aromatics is diphenyl propane. Other non key components are triisopropyl benzene, cume..
What is the entropy change for a particle in this system if the final number of microstates is 0.819 times that of the initial number of microstates?
Look at the table of polyatomic ions and determine what happens to the charge on the polyatomic ion, phosphate when an H+ is added to the formula. What is the new name
Cyclopentadiene is unstable because it rapidly undergoes a Diels-Alder reaction with itself. Carefully draw the structure of the product, showing stereochemistry clearly.
An uncovered cup (1/2 pint) of trichloroethane (d=1.325 g/mL) is kept in an 18-ft3 refrigerator at 39 F. What percentage (by mass) of trichloroethane is left as a liquid when equilibrium is established
The student then titrated 25ml of the same buffer with 0.1115M NaOH. The observed titration curve is shown before. what is the concentration of the weak acid in the buffer?
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum:
How many grams of precipitate are formed when 204 mL of a 0.794 M aluminum sulfate soultion and 301 mL of a 1.48 M sodium hydroxide solution are mixed together?
Zinc metal can be obtained from zinc oxide (ZnO) by reacting the oxide with the element carbon. The products of the reaction are Zn and CO2.
how much energy is released when 89 grams of water vapor (steam) is cooled from 503 K to 354 K?
How could you be certain a peak in the soda was caffeine and not another substance with similar retention time
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