AAMC 3 questions with verified
solutions graded A+
Capacitance equations x3 - correct answer ✔✔1. C=Q/V
C= Capacitance
Q=charge
V=Voltage)
Units = Farad = Coulomb/volt
2. C = KεA / d (FOR PARALLEL capacitor)
K = dielectric constant
ε = permittivity of free space
A = area
d = separation of plates
3. PE=(1/2)CV^2
Doppler effect - correct answer ✔✔frequency increases (wavelength decreases) as you go towards the
source and frequency decreases (wavelength increases) as you go further from the sound source.
due to the Doppler effect, the frequency that the person on the railcar hears before passing the horn is
larger than the actual frequency of the sound emitted, while the person hears a frequency lower than
the actual frequency after passing the horn.
power equations - correct answer ✔✔Power = Force x Velocity = Work /Time
,Force = M x A
Velocity = Distance / Time
Work = Force x distance
The relative thermodynamic stability of isomeric organic compounds can be inferred from which of the
following types of experimental data?
A.
Boiling points
B.
UV-visible absorption spectra
C.
Mass spectroscopic fragmentation patterns
D.
Heats of combustion - correct answer ✔✔stability is related to energy in that more stable molecules
have less energy while the less stable molecules have more energy to start with. So the ones that give
more heat off when burned were less stable.
Since we are talking about isomers, they will all combust under the same reaction, but will give off
different amounts of heat due to their different stabilizes.
Boiling point is about the intermolecular forces, while heat of combustion is about the intramolecular
forces. Thermodynamic stability is about intramolecular forces.
Water dissociation constant - correct answer ✔✔
limiting reagent - correct answer ✔✔any reactant that is used up first in a chemical reaction; it
determines the amount of product that can be formed in the reaction
The energy of activation for the reaction described in the passage is given by the energy of:
A.
the reactants minus the energy of the products.
B.
, the products minus the energy of the reactants.
C.
the activated complex minus the energy of the products.
D.
the activated complex minus the energy of the reactants. - correct answer ✔✔The answer to this
question is D because the activation energy for a reaction represents the minimum energy barrier
necessary to be overcome by the reactants on the path to products.
energy of activation (Ea) - correct answer ✔✔The amount of energy that reactants must absorb before a
chemical reaction will start
That the electric field is uniform between the electrodes means that the electric field lines:
A.
are more closely spaced at the positive electrode than at the negative one.
B.
intersect halfway between the electrodes.
C.
are more closely spaced at the negative electrode than at the positive one.
D.
are equally spaced at both electrodes and between them. - correct answer ✔✔by definition, electric
field lines are equally spaced in a uniform field.
Oxidoreductases - correct answer ✔✔catalyze oxidation-reduction reactions
Which experimental condition is NOT necessary to achieve reliable data for Michaelis-Menten enzyme
kinetics?
A.
Initial velocity is measured under steady state conditions.
B.
Solution pH remains constant at all substrate concentrations.
solutions graded A+
Capacitance equations x3 - correct answer ✔✔1. C=Q/V
C= Capacitance
Q=charge
V=Voltage)
Units = Farad = Coulomb/volt
2. C = KεA / d (FOR PARALLEL capacitor)
K = dielectric constant
ε = permittivity of free space
A = area
d = separation of plates
3. PE=(1/2)CV^2
Doppler effect - correct answer ✔✔frequency increases (wavelength decreases) as you go towards the
source and frequency decreases (wavelength increases) as you go further from the sound source.
due to the Doppler effect, the frequency that the person on the railcar hears before passing the horn is
larger than the actual frequency of the sound emitted, while the person hears a frequency lower than
the actual frequency after passing the horn.
power equations - correct answer ✔✔Power = Force x Velocity = Work /Time
,Force = M x A
Velocity = Distance / Time
Work = Force x distance
The relative thermodynamic stability of isomeric organic compounds can be inferred from which of the
following types of experimental data?
A.
Boiling points
B.
UV-visible absorption spectra
C.
Mass spectroscopic fragmentation patterns
D.
Heats of combustion - correct answer ✔✔stability is related to energy in that more stable molecules
have less energy while the less stable molecules have more energy to start with. So the ones that give
more heat off when burned were less stable.
Since we are talking about isomers, they will all combust under the same reaction, but will give off
different amounts of heat due to their different stabilizes.
Boiling point is about the intermolecular forces, while heat of combustion is about the intramolecular
forces. Thermodynamic stability is about intramolecular forces.
Water dissociation constant - correct answer ✔✔
limiting reagent - correct answer ✔✔any reactant that is used up first in a chemical reaction; it
determines the amount of product that can be formed in the reaction
The energy of activation for the reaction described in the passage is given by the energy of:
A.
the reactants minus the energy of the products.
B.
, the products minus the energy of the reactants.
C.
the activated complex minus the energy of the products.
D.
the activated complex minus the energy of the reactants. - correct answer ✔✔The answer to this
question is D because the activation energy for a reaction represents the minimum energy barrier
necessary to be overcome by the reactants on the path to products.
energy of activation (Ea) - correct answer ✔✔The amount of energy that reactants must absorb before a
chemical reaction will start
That the electric field is uniform between the electrodes means that the electric field lines:
A.
are more closely spaced at the positive electrode than at the negative one.
B.
intersect halfway between the electrodes.
C.
are more closely spaced at the negative electrode than at the positive one.
D.
are equally spaced at both electrodes and between them. - correct answer ✔✔by definition, electric
field lines are equally spaced in a uniform field.
Oxidoreductases - correct answer ✔✔catalyze oxidation-reduction reactions
Which experimental condition is NOT necessary to achieve reliable data for Michaelis-Menten enzyme
kinetics?
A.
Initial velocity is measured under steady state conditions.
B.
Solution pH remains constant at all substrate concentrations.
