What is the lethal dose that results in the death of 50% of a test animal population.
100
What is the dihedral angle and how is it found?
What is the angle between two C-H bonds represented on the x-axis on the karplus equation graph. It's found by using the distance between the double peaks from the NMR as the y-axis values, then following that across to intersect the graph. The x value directly below the intersection point will give you the dihedral angle.
100
What is the purpose of refluxing the reaction?
What is providing the energy needed to overcome the activation energy since the reaction is endothermic
100
What is the reactant that must adopt the s-cis conformation?
What is the diene
100
What was the purpose of using acetic acid?
What is the solvent.
200
What is the TLV?
What is the threshold limit value - the maximum safe airborne conc. to which a worker can be exposed to 40 hours per week without adverse health effects.
200
What is the J-value?
What is the distance between two peaks of a doublet from the Hydrogen NMR spectra
200
What is the reasoning behind eugenol appearing almost colorless, while isoeugenol is not?
What is conjugation, causing the pi and pi* to be closer, allowing electrons to more easily go into the pi*
200
What is the reason the final product only had 11 aromatic peaks in the C-13 NMR?
What is symmetry creating only 11 different carbons
200
What was the function of bromine in the reaction?
What is the electrophile to be added to the benzene ring
300
What is the required time and flow rates/pressure for the eyewash station and saftey shower?
What is 0.4 gallons per minute at 30 psi for 15 minutes, and 30 gallons per minute at 30 psi.
300
What is TMS and what does it stand for?
What is the reference compound of an NMR spectra; tetramethylsilane
300
What is an isomerization reaction?
What is a reaction where a structural isomer is formed with the same molecular composition, simply rearranged
300
What is the reason ice cold methanol was used?
What is washing impurities left from the reactants; the temperature was to keep from dissolving any product.
300
What is a reaction where the aromatic hydrogen is substituted with an electrophile?
What is an electrophilic aromatic substitution
400
What is silicosis?
What is a disease of the lungs caused by the inhalation of silica dust
400
What are 2 of the 4 limitations in this experiment?
What is time, use of D2O, Temperature, pH control
400
What is the term used to describe the effects of using aqueous sodium chloride solution?
What is salting out
400
What is the solvent used for the Diels-Alder reaction and why was it used?
What is 1,2 dichlorobenzene; the boiling point is 180 deg. C
400
What is the purpose of adding water to the reaction mixture after the reaction was over?
What is increasing the polarity to force the nonpolar crystals out of solution
500
What is the linear face velocity of a certified fume hood?
What is 100-120 fpm at a sash height of at least 15 inches.
500
What are the 2 steps used to prove fumaric acid undergoes anti addition reaction with water to yield malic acid.
What is using D2O instead of H20, and what is the Karplus Equation.
500
What is the reasoning behind the little peak indicating a CH2 group in the NMR spectrum of isoeugenol?
What is the peak coming from Eugenol since the reaction is in equilibrium, not driven completely to products only
500
What is the reasoning behind Diels-Alder being called a [4+2] cycloaddition reaction?
What is a reaction including 4 pi electrons from the diene and 2 pi electrons from the dienophile combining to form a cyclohexene product.
500
What is the reason bromination of acetanilide cannot be run above room temperature?
What is the flashpoint temperature is close to room temperature.