Page 1 of 193
AAMC FL 4 EXAM QUESTIONS AND WELL
EXPLAINED ANSWERS LATEST UPDATE JUST
RELEASED THIS YEAR
Question: Why was it important that the cuvettes containing the glucose oxidase and the blood
sample were identical in terms of optical properties?
A.
To enable the comparison of the absorption spectra
B.
To reduce the absorption in the glass walls
C.
To decrease the uncertainty in the wavelength
D.
To increase the absorption in the solutions - CORRECT ANSWER✔✔Correct-A
Having identical properties will allow the researchers to have a more accurate measurement of
the absorbed radiation.
, Page 2 of 193
AAMC: The goal of exp is to test [gluc], not energy, TF wavelength is not important here bc
wavelength is more connected to energy. They knew the wavelength BUT they needed to know
absorption, which is diff and having identical cuvettes
**fully understand the researcher's goal
Question: What is the approximate energy of a photon in the absorbed radiation that yielded
the data in Table 1?
(Note: Use 1 eV = 1.6 × 10-19 J and hc = 19.8 × 10-26 J•m.)
A.
1 eV
B.
2 eV
C.
3 eV
D.
4 eV - CORRECT ANSWER✔✔Missed-B
I had the correct setup: E=hc/wave
, Page 3 of 193
AAMC: Q is asking for eV --> convert my answer (3 J -->ev)
1. 1 eV = 1.6 × 10-19 J
2. RATIO OF 2, --> 2eV
PLEASE DOUBLE CHECK THAT IT IS CORRECT UNITS
Question: Limestone does NOT decompose when heated to 900 K because, at 900 K, ΔH is:
A.
positive and less than TΔS.
B.
positive and greater than TΔS.
C.
negative and less than TΔS.
D.
, Page 4 of 193
negative and greater than TΔS. - CORRECT ANSWER✔✔Correct-B
ME:
Solid decomposing -> endothermic, if not decomposing at HIGH temp -> H > TS (not enough
entropy)
AAMC:\
Rxn not occurring--> NONSPON--> G=+ --> H has to be greater than TS for that to happen
Need to connect, rxn not occuring (NONSPON) and rxn occuring (SPON), and fit the equation for
that
Question: When limestone is heated during Step 1, an equilibrium is established. Which of the
following expressions is the equilibrium constant for the decomposition of limestone?
A.
[CaO]
B.
[CaCO3]
C.
AAMC FL 4 EXAM QUESTIONS AND WELL
EXPLAINED ANSWERS LATEST UPDATE JUST
RELEASED THIS YEAR
Question: Why was it important that the cuvettes containing the glucose oxidase and the blood
sample were identical in terms of optical properties?
A.
To enable the comparison of the absorption spectra
B.
To reduce the absorption in the glass walls
C.
To decrease the uncertainty in the wavelength
D.
To increase the absorption in the solutions - CORRECT ANSWER✔✔Correct-A
Having identical properties will allow the researchers to have a more accurate measurement of
the absorbed radiation.
, Page 2 of 193
AAMC: The goal of exp is to test [gluc], not energy, TF wavelength is not important here bc
wavelength is more connected to energy. They knew the wavelength BUT they needed to know
absorption, which is diff and having identical cuvettes
**fully understand the researcher's goal
Question: What is the approximate energy of a photon in the absorbed radiation that yielded
the data in Table 1?
(Note: Use 1 eV = 1.6 × 10-19 J and hc = 19.8 × 10-26 J•m.)
A.
1 eV
B.
2 eV
C.
3 eV
D.
4 eV - CORRECT ANSWER✔✔Missed-B
I had the correct setup: E=hc/wave
, Page 3 of 193
AAMC: Q is asking for eV --> convert my answer (3 J -->ev)
1. 1 eV = 1.6 × 10-19 J
2. RATIO OF 2, --> 2eV
PLEASE DOUBLE CHECK THAT IT IS CORRECT UNITS
Question: Limestone does NOT decompose when heated to 900 K because, at 900 K, ΔH is:
A.
positive and less than TΔS.
B.
positive and greater than TΔS.
C.
negative and less than TΔS.
D.
, Page 4 of 193
negative and greater than TΔS. - CORRECT ANSWER✔✔Correct-B
ME:
Solid decomposing -> endothermic, if not decomposing at HIGH temp -> H > TS (not enough
entropy)
AAMC:\
Rxn not occurring--> NONSPON--> G=+ --> H has to be greater than TS for that to happen
Need to connect, rxn not occuring (NONSPON) and rxn occuring (SPON), and fit the equation for
that
Question: When limestone is heated during Step 1, an equilibrium is established. Which of the
following expressions is the equilibrium constant for the decomposition of limestone?
A.
[CaO]
B.
[CaCO3]
C.
