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CP/GHP Chemistry Final Exam Review Flashcards | StudBud
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CP/GHP Chemistry Final Exam Review
CP/GHP Chemistry Final Exam Review
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Basic, non-calculator questions for 2nd semester exam for regular college prep chemistry
Flashcards
40 cards
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Questions
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Answers
1
What is the maximum number of f orbitals in any single energy level in an atom?
7
3
14
1
2
When 2 substances react to form products, the reactant which is used up is called the
catalytic reagent
limiting reagent
excess reagent
determining reagent
3
What variable is constant for Boyle's Law, Charles' Law, and the combined gas law?
number of moles
volume
temperature
pressure
4
What units of pressure are needed for a value of R = 8.31?
mm Hg
atm
torr
kPa
5
Which of the following are STP conditions?
273K, 101.3 atm
273K, 760 mm Hg
100K, 273 kPa
0K, 760 torr
6
The combined gas law relates which of the following?
volume and temperature only
pressure and volume only
temperature, pressure and volume
moles, volume, and temperature
7
How many moles of Al are needed to react completely with 9 moles of FeO?
6
6
13.5
18
8
Which variable is directly proportional to frequency?
energy
velocity
wavelength
position
9
Which of the following quantum leaps is associated with the greatest energy of emitted light?
n=4 to n=5
n=5 to n=4
n=2 to n=5
n=5 to n=1
10
How many C atoms are in 3 molecules of C
3
H
18
?
18
3
54
9
11
How many moles of gas are produced when 8.31L of a gas is at 100 Kpa pressure and 100 K?
0.5
0.1
1
2.54
12
What is the e- configuration of potassium?
1s22s22p23s23p24s1
1s22s23s23p63d1
1s22s22p103s23p3
1s22s22p63s23p64s1
13
How many moles of CO are needed to completely reacted with 4.3 moles of oxygen?
8.6
3.2
1.5
4.3
14
The tendency of gas molecules to move to regions of lower concentration
dissociation
diffusion
partial pressure
effusion
15
The principal quantum number indicates what property of an electron?
energy level
speed
position
electron could shape
16
Which gas will effuse the fastest?
hydrogen
neon
chlorine
helium
17
How does the energy of an e- change when the e- moves closer to the nucleus?
it increases
it decreases
it doubles
it stays the same
18
If the frequency of light is known, __________ can be determined.
all of the above
speed of light
energy
wavelength
19
What happens to the temperature of a gas when it is compressed?
the temperature decreases
the temperature increases
Cannot be predicted
the temperature doesn't change
20
What does the ideal gas law allow a scientist to calculate that the other gas laws do not?
number of moles
temperature
volume
pressure
21
What is the partial pressure of Ar in a 25%He, 50%Ar, 25% Ne mixture at 150kPa?
50 kPa
75 kPa
100 kPa
150 kPa
22
In the following reaction, what is the ratio of moles of oxygen used to moles of CO
2
produced?
1:1
2:2
2:1
1:2
23
How many molecules are in 2 moles of CO2?
88
6.02 x 1046
1.2 x 1023
1.2 x 1024
24
If the volume of a gas vessel is reduced, what happens to the pressure inside the container?
depends on the type of gas
the pressure will increase
the pressure will decrease
the pressure will not change
25
What is the number of e- in the outermost energy level of an oxygen atom?
8
4
6
2
26
The number of grams of an element that is numerically equal to the atomic mass of the element
molar volume
atomic mass
molar mass
gram mass
27
How many moles of Al2O3 are produced when 0.60 mol Fe is produced?
0.40
0.60
0.90
0.20
28
Using
stoichiometry
to determine the amount of product formed is called the
actual yield
percent yield
theoretical yield
experimental yield
29
Which of the following is a constant for 1 mole of any ideal gas?
VT/P
PV/T
PVT
PT/V
30
What is the shape of the 3p atomic orbital?
sphere
dumbbell
bar
ring
31
If 22.4L O
2
react at STP conditions, how many L of CO
2
are produced?
22.4 L
6.1 L
12.2 L
44.8 L
32
One mole of a substance can be equal to
molar mass in grams
all of the above
6.02 x 1023 atoms
6.02 x 1023 molecules
33
Which type of electromagnetic radiation includes the wavelength 10
-7
m?
radio waves
gamma rays
visible light
microwaves
34
As the temperature of gas in a balloon decreases, which of the following occurs?
all of the above
the pressure inside the balloon decreases
the average kinetic energy of the gas decreases
the volume of the balloon decreases
35
Which is the best choice for a balloon that must remain inflated for a long period of time?
oxygen
argon
hydrogen
neon
36
What is true about the molar mass of chlorine gas?
It is 71.0 g
Is equal to the mass of one mole of Cl atoms
It is 35.5 g
None of these.
37
Which
initia
l
conversion factor would you use to find the mass of CO
2
formed from 75.6 g O
2
?
2 molCO2/1 mol O2
1 mol/32.0 g
1 mol O2/2 mol CO2
1 mol/16.0 g
38
Boyle's Law states that
volume varies inversely with pressure
volume varies directly with pressure
temperature varies inversely with pressure
temperature varies directly with pressure
39
Which of the following exists as a diatomic molecule?
neon
nitrogen
sulfur
lithium
40
Charles' Law states that
volume is directly proportional to temperature
pressure is directly proportional to temperature
pressure is inversely proportional to temperature
volume is inversely proportional to temperature
