Altius 1 MCAT Practice Exam Questions
Correctly Answered.
Pt - CORRECT ANSWER platinum
Pd - CORRECT ANSWER palladium
Deuteration - CORRECT ANSWER heavy water, D2O
on a pH titration curve, the buffering capacity is along which lines - CORRECT ANSWER horizontal
What does Hydrophobic interaction chromatography (HIC) depend on - CORRECT ANSWER salt
concentration
direction of electrons and current - CORRECT ANSWER opposite
electrons flow from __ to __ - CORRECT ANSWER Negative (-) to Positive (+)
current flows from __ to __ - CORRECT ANSWER positive terminal to negative terminal
390 nm color - CORRECT ANSWER violet
700 nm - CORRECT ANSWER red
gamma rays - CORRECT ANSWER 0.0001 nm to 0.01 nm
x-rays - CORRECT ANSWER 0.01 nm to 10 nm
, ultraviolet rays - CORRECT ANSWER 10 nm to 400 nm
infrared - CORRECT ANSWER 1000 nm to 0.1 cm
radio waves - CORRECT ANSWER 1 cm to 1 m
is it cis or trans isomers that can stack closely to one another? - CORRECT ANSWER trans, which means
they can also have a higher bp
m/z - CORRECT ANSWER mass to charge ratio: best way to separate ions in a mass spectrometer. this
number is calculated by dividing the weight of the ion by its charge
mass spectrometer - CORRECT ANSWER -involves the ionization and fragmentation of compounds;
these fragments are then run through a magnetic field, which separates them by mass to charge ration
-the total molecular weight can thus be determined, or the relative concentrations of the different
fragments can be calculated and compared against reference values to identify the compound
Faraday collectors - CORRECT ANSWER metal cup designed to catch charged particles in a. vacuum
what state is compound in for mass spectrometers - CORRECT ANSWER gaseous
how is sample ionized in mass spectrometry - CORRECT ANSWER bombarded by electrons from a
filament
In mass spec, the biggest number indicates...j - CORRECT ANSWER -the biggest size which is the size of
the intact isomer
-the more of the intact isomer there is, the more stable it is
In mass spec, which bonds are typically not broken? - CORRECT ANSWER double bonds
Correctly Answered.
Pt - CORRECT ANSWER platinum
Pd - CORRECT ANSWER palladium
Deuteration - CORRECT ANSWER heavy water, D2O
on a pH titration curve, the buffering capacity is along which lines - CORRECT ANSWER horizontal
What does Hydrophobic interaction chromatography (HIC) depend on - CORRECT ANSWER salt
concentration
direction of electrons and current - CORRECT ANSWER opposite
electrons flow from __ to __ - CORRECT ANSWER Negative (-) to Positive (+)
current flows from __ to __ - CORRECT ANSWER positive terminal to negative terminal
390 nm color - CORRECT ANSWER violet
700 nm - CORRECT ANSWER red
gamma rays - CORRECT ANSWER 0.0001 nm to 0.01 nm
x-rays - CORRECT ANSWER 0.01 nm to 10 nm
, ultraviolet rays - CORRECT ANSWER 10 nm to 400 nm
infrared - CORRECT ANSWER 1000 nm to 0.1 cm
radio waves - CORRECT ANSWER 1 cm to 1 m
is it cis or trans isomers that can stack closely to one another? - CORRECT ANSWER trans, which means
they can also have a higher bp
m/z - CORRECT ANSWER mass to charge ratio: best way to separate ions in a mass spectrometer. this
number is calculated by dividing the weight of the ion by its charge
mass spectrometer - CORRECT ANSWER -involves the ionization and fragmentation of compounds;
these fragments are then run through a magnetic field, which separates them by mass to charge ration
-the total molecular weight can thus be determined, or the relative concentrations of the different
fragments can be calculated and compared against reference values to identify the compound
Faraday collectors - CORRECT ANSWER metal cup designed to catch charged particles in a. vacuum
what state is compound in for mass spectrometers - CORRECT ANSWER gaseous
how is sample ionized in mass spectrometry - CORRECT ANSWER bombarded by electrons from a
filament
In mass spec, the biggest number indicates...j - CORRECT ANSWER -the biggest size which is the size of
the intact isomer
-the more of the intact isomer there is, the more stable it is
In mass spec, which bonds are typically not broken? - CORRECT ANSWER double bonds
