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A student performed the reaction of this experiment (preparation of aspirin) using a water bath at 90 degrees C instead of 50 degrees C. The final product was tested for the presence of phenols with ferric chloride. The test was negative (no color observed); however, the melting point of the dry product was 122-125 degrees C. Explain these results as completely as possible.
A 21.0-mL sample of an unknown H3PO$ solution is titrated with a 0.100M NaOH solution. The equivalence point is reached when 18.35mL of NaOH solution is added.
an automobile gasoline tank holds 22 kg of gasoline. when the gasoline burns 83 kg of oxygen is consumed and carbon
show the acid catalyzed enamine product formation from 2-butanone and diethylamine
Fish produce glycerol to survive the freezing waters of the Arctic. Determine the degree to which the freezing point of blood and other biological fluids is lowered with the help of glycerol. What is the ideal concentration range of glycerol requi..
For which of the following general classes of compound do the member NOT exhibit a common structural feature or function
the reaction converting glycerol to glycerol-3-phosphate is energetically unfavorable by 9.2kj. the reaction of atp
Calculate the pH of a solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL of 0.10 M benzoic acid (Ka = 6.5 x 10-5)
a gas sample has an original volume of 800 ml when collected at 710 mm and 30degc. what will be the volume of the gas
when the explosion destroys the bomb casing the gas is released into the atmosphere where it reaches a pressure of 1.00 atm. what is the volume of the gas after the explosion? assume constant temperature and number of moles.
For example if your compound is water and you have the information the boiling point, Tb=(99.98 C), the enthalpy of vaporization= (40.65 kJ/mol) and the molar mass= 18.02g/mol.
Why would the active form of thrombin be produced only when an injury occurs to tissue?
What is the pH of a 2:1 mixture of H2PO4- to HPO42- at 0.005 M ionic strength. (See the table for the activity coefficients.)
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