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Chem 1 Review of 4th nine weeks

Total questions: 33

Worksheet time: 28mins

Name
Class
Date
1.
What is 50 C in Kelvin?
a)
223
b)
323
c)
100
d)
50
2.
What will happen to the volume of a gas under constant temperature if the pressure increases?
a)
Increase
b)
Decrease
c)
Nothing
d)
Explosion!
3.
How do you convert Celsius to Kelvin?
a)
Add 273
b)
Subtract 273
c)
You can't convert those
d)
They are the same thing
4.
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
5.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
6.
According to Boyle's law, at constant temperature, as the pressure of a given sample of gas is increased, the volume will –
a)
Increase
b)
Decrease
c)
Remains the same
7.
What is the equation for Boyle's Law?
a)
P1V1=P2V2
b)
V1/T1=V2/T2
c)
V1/n1=V2/n2
d)
P1/T1=P2/T2
8.
What is the equation for Charles' Law?
a)
P1V1=P2V2
b)
V1/T1=V2/T2
c)
V1/n1=V2/n2
d)
P1/T1=P2/T2
9.
As temperature increases, volume _____.
a)
Stays the same
b)
Fluctuates
c)
Decreases
d)
Increases
10.

A 200. mL balloon of helium gas has a temp of 293K. What is the temp of the helium balloon if the volume expands to 600.mL?

a)

879 mL

b)

410.vmL

c)

60.0 mL

d)

273 mL

11.

Water has a positive end and a negative end, this makes it a

a)

nonpolar molecule

b)

polar molecule

12.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
13.

The ability of a liquid to flow against gravity in a narrow space such as a thin tube

a)

cohesion

b)

adhesion

c)

surface tension

d)

capillary action

14.
What is the thin film that forms on the surface of a body of water; allows insects to float?
a)
high specific heat
b)
viscosity
c)
surface tension
d)
capillary action
15.

The part of a soultion that is in the greatest amount is....

a)

never the solvent

b)

always the solvent

c)

the solute and solvent will be in equal amounts

d)

always the solute

16.

A solution is.......

a)

a heterogeneous mixture

b)

a homogeneous mixture

c)

a pure substance

d)

a compound

17.

A teaspoon of dry coffee crystals dissolves when mixed in a cup of hot water producing a coffee solution. The water is classified as a...

a)

reactant

b)

solute

c)

solvent

d)

product

18.

Solubility of a solute depends on all BUT...

a)

temperature

b)

like dissolves like

c)

agitation

d)

heat capacity

e)

particle size

19.

According to the graph above, which salt's solubility in water is least affected by temperature increasing?

a)

NaClO3

b)

KNO3

c)

KBr

d)

NaCl

20.

Which substance is MOST soluble at 0ºC?

a)

NaClO3

b)

KNO3

c)

KBr

d)

NaCl

21.

If you add more solute to this solution, it will not dissolve even with stirring, it will NOT crystalize with the addition of a crystal of the solute and is on the solubility curve in graph of solubility.

a)

saturated

b)

unsaturated

c)

supersaturated

22.

What is the molarity of a solution of KCl if 1500. mL contains 149.2 grams of KCl? (Atomic mass of K = 39.10 g/mol and Cl = 35.45 g/mol)

a)

2.54 M

b)

2.81 M

c)

1.33 M

d)

0.00133 M

23.

A stock solution of 6.0 M H2SO4 is used to prepare 1500. mL of 0.30 M sulfuric acid for an experiment. How many mL of the more concentrated solution would be needed to prepare the dilute solution?

a)

30,000 mL

b)

75 mL

c)

0.0012 mL

d)

833 mL

24.

Reacts with metals

a)

acid

b)

base

c)

both acid and base

25.

Tastes bitter

a)

acid

b)

base

c)

both an acid and a base

26.

Has a pH more than 7

a)

acid

b)

base

c)

both an acid and a base

27.

Ends with "OH-"

a)

acid

b)

base

c)

both an acid and a base

28.

Conducts electricity (has electrolytes)

a)

acid

b)

base

c)

both an acid and a base

29.

Feels slippery

a)

acid

b)

base

c)

an acid and a base

30.

If the [H+] of a solution is 1 x 10-2 M, the pH is

a)

2

b)

12

c)

-2

d)

1

31.

If the pH of a solution is 4.0, what is the pOH?

a)

4.0

b)

1.0 E-4

c)

10

d)

Cannot be determined from the information

32.

Limes have a [H+] of 1.3 x 10-2 M. Their pOH is

a)

1.89

b)

12.11

c)

1.03

d)

12.97

33.

if the [H+] of a solution is 8.4 x 10-3 M, the pOH of the solution will be

a)

2.08

b)

11.92

c)

1.02

d)

12.98

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