WorksheetsMatter, Phase Diagram, KMT & Gases
Total questions: 48
Worksheet time: 1hrs 19mins
Name
Class
Date
1.
Iron + oxygen = rust is an example of a ___________.
a)
physical property/change
b)
chemical property/change
c)
mass
d)
volume
2.
What state of matter has a no definite shape and a definite volume?
a)
solid
b)
liquid
c)
gas
3.
Air is an example of a ....
a)
homogeneous mixture (solution)
b)
heterogeneous mixture
c)
pure substance
4.
Orange juice with pulp is an example of a ....
a)
homogeneous mixture (solution)
b)
heterogeneous mixture (suspension)
c)
heterogeneous mixture (colloid)
d)
pure substance
5.
How are solids different from liquids?
a)
particles in solids are moving freely around each other.
b)
particles in solids have no motion.
c)
particles in solids are vibrating in place.
d)
particles in solids have more motion than in liquids
6.
What happens to particles when they are heated?
a)
They speed up and spread out
b)
They slow down and compress
c)
They stop moving
d)
They move closer together and speed up
7.
What state of matter is Y?
a)
solid
b)
liquid
c)
gas
d)
supercritical fluid
8.
What is the normal boiling point of this substance?
a)
150 °C
b)
100 °C
c)
-50 °C
d)
0 °C
9.
What is point A?
a)
triple point
b)
critical point
c)
equilibrium point
d)
normal melting point
10.
What is point B?
a)
triple point
b)
critical point
c)
equilibrium point
d)
normal melting point
11.
Which statement is true for carbon dioxide at -60 °C?
a)
All three phases are possible.
b)
It can exist as a solid or a gas, depending on pressure.
c)
It is a solid.
d)
With enough pressure it can be melted.
12.
What is the molarity of 4 g of NaCl (MM=58.45) in 3.8 L of solution?
a)
0.018 M
b)
0.0011 M
c)
1.052 M
d)
0.062 M
13.
What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO3 to a volume of 250 mL?
a)
15.9 M
b)
0.636 M
c)
0.642 M
d)
1.59 M
14.
What is the molarity of a solution made by adding 1.565 moles of PbNO3 to 500 mL?
a)
300. M
b)
31.3 M
c)
3.13 M
d)
1.56 M
15.
Molarity is measured in
a)
moles per kg
b)
mols per L
c)
moles per kJ
d)
moles per mL
16.
The ___ is the thing being dissolved
a)
solute
b)
solvent
17.
What does the solute dissolve in?
a)
solvent
b)
mixture
c)
solute
18.
Which of the following below is a chemical property?
a)
Color
b)
Density
c)
Boiling Point
d)
Reactivity with Acid
19.
Which of the following situations is evidence of chemical change?
a)
Boiling water produces steam
b)
Adding vinegar to baking soda makes foaming bubbles
c)
Sharpening a pencil
d)
Cutting paper
20.
The candle has a texture that is soft enough to scrape with a fingernail, this is a
a)
Physical Property
b)
Physical Change
c)
Chemical Property
d)
Chemical Change
21.
A phase change is a:
a)
Chemical change
b)
Change for the better
c)
Physical Change
d)
Metamorphosis
22.
Is wood burning a physical or chemical change?
a)
Physical
b)
Chemical
23.
Is Gatorade powder dissolving in water physical or chemical change?
a)
Physical
b)
Chemical
24.
Is copper tarnishing a physical or chemical change?
a)
Physical
b)
Chemical
25.
Is the formation of the grand canyon a physical or chemical change?
a)
Physical
b)
Chemical
26.
At what temperature do nitrogen molecules move fastest?
a)
350 K
b)
300 K
c)
250 K
d)
200 K
27.
Pressure is caused by ______.
a)
gravity.
b)
gas molecules colliding with each other.
c)
gas molecules colliding with surfaces of the container.
d)
gas molecules reacting with each other.
28.
The molecules of a gas are in constant and random motion.
a)
TRUE
b)
FALSE
c)
DEPENDS UPON THE KIND OF MOLECULE
29.
What will happen to the volume of the gas when the temperature is increased?
a)
volume decreases
b)
volume increases
30.
Gas molecules can easily be compressed because ___________.
a)
gas molecules are soft
b)
gas molecules are far apart
c)
gas molecules follow the shape of the container
31.
Among the following gases, which one is the heaviest?
a)
hydrogen gas
b)
nitrogen gas
c)
oxygen gas
d)
chlorine gas
32.
A hypothetical gas that perfectly fits all the assumptions of the kinetic molecular theory is a(n)________
a)
ideal gas
b)
combined gas
c)
technical gas
d)
chemical gas
33.
Convert 540 mmHg to kPa; round your answer to correct sig figs.
a)
71.976 kPa
b)
72 kPa
c)
4051 kPa
d)
4100 kPa
34.
Under what conditions do real gases behave as close to ideal as possible?
a)
Low pressure and High temperature
b)
Low temperature and Low pressure
c)
Low temperature and high pressure
d)
High temperature and high pressure
35.
What is 50 C in Kelvin?
a)
223
b)
323
c)
100
d)
50
36.
If a nitrogen gas occupies a volume of 500ml at a pressure of 0.971atm. What volume will the gas occupy at a pressure of 1.50 atm, assuming the temperature remains constant?
a)
323.6 ml
b)
728.25 ml
c)
772.39 ml
d)
None of the above
37.
A sample of a gas has a volume of 852 mL at 298 K. What temperature is necessary for the gas to have a volume of 945 mL?
a)
57.5⁰C
b)
57.5 K
c)
330.5 K
d)
330.5⁰C
38.
If 200 mL of a gas at 27°C is cooled to -33°C at a constant pressure, the volume will be
a)
250 mL
b)
204 mL
c)
196 mL
d)
160 mL
39.
A gas occupies 4.31 liters at a pressure of 0.755 atm. Determine the volume if the pressure is increased to 1.25 atm.
a)
2.6L
b)
2.6mL
c)
2.6kL
d)
260L
40.
If the pressure exerted by a gas at 25 degrees C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?
a)
.002766 mole
b)
.0069 mol
c)
2.766 mol
d)
9.887 mol
41.
A sample of Argon gas occupies a volume of 1.8 L at 2.8 atm. What will its volume be at 1.2 atm?
a)
.77 L
b)
1.87 L
c)
3.0 L
d)
4.2 L
42.
A mixture of hydrogen, nitrogen, and water vapor has a total pressure of 864 mmHg. The partial pressure of hydrogen is 220 mmHg and that of nitrogen is 410 mmHg. What is the partial pressure of water vapor?
a)
234 mmHg
b)
1.37 mmHg
c)
2.64 mmHg
d)
1, 494 mmHg
43.
The partial pressure of gas X is 340 torr. The partial pressure of gas Y is 264 torr. The partial pressure of gas Z is 100 torr. What is the total pressure exerted by the gases in this system?
a)
76 torr
b)
440 torr
c)
604 torr
d)
704 torr
44.
Which of the following gases will effuse most slowly under the same physical conditions?
a)
Hydrogen
b)
Chlorine
c)
Ammonia (NH3)
d)
Bromine
45.
Dalton's Law states...
a)
that at a constant temperature the volume of a confined ideal gas varies inversely with its pressure.
b)
that the total pressure exerted by the mixture of non-reactive gases is equal to the sum of the partial pressures of individual gases
c)
how gases tend to expand when heated
d)
that the density of an ideal gas at constant pressure varies inversely with the absolute temperature of the gas.
46.
Lighter gases have a ________________ rate of effusion.
a)
faster
b)
slower
c)
rate of effusion does not depend on mass.
47.
Calculate the relative rate of effusion of gaseous oxygen, O2, and nitrogen, N2.
a)
4.00
b)
1.07
c)
3.74
d)
0.94
48.
Under the same conditions, how many times faster will hydrogen gas effuse than carbon dioxide gas?
a)
4.69
b)
4.58
c)
0.218
d)
0.213
100 %
