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solubility

Total questions: 69

Worksheet time: 2hrs 49mins

Name
Class
Date
1.

At 10'C, NaNO3's solubility is 80 g/100 g of H2O. Based on this information, what would the solubility be in 50 g of H2O.

a)

40

b)

80

c)

160

d)

16

2.

Mg(NO3)2

a)

Soluble

b)

Insoluble

3.

What type of a solution is 55g KCl at 70ºC in 100g H2O?

a)

Saturated

b)

Unsaturated

c)

Supersaturated

4.

Ag2SO4

a)

Soluble

b)

insoluble

5.
How many more grams of KNO3 dissolve at 50 ⁰C compared to 0 ⁰C?
a)
85 g
b)
15 g
c)
70 g
d)
100 g
6.
Which substance is MOST soluble at 0 ºC?
a)
KI
b)
NaNO3
c)
NaCl
d)
Ce2(SO4)3
7.

Na2CO3

a)

Soluble

b)

Insoluble

8.

BeS

a)

Soluble

b)

Insoluble

9.

At 80'C, KBr's solubility is:

a)

100

b)

90

c)

80

d)

0

10.

CaCl2

a)

Soluble

b)

Insoluble

11.

Determine the solubility for the substances at 55'C and arrange them in order from lowest to highest solubility.

a)

NaCl, NH4Cl, KBr, NaNO3

b)

NaCl, NH4Cl, NaNO3, KBr

c)

NH4Cl, NaCl, NaNO3, KBr

d)

NaNO3, KBr, NH4Cl, NaCl

12.

At 30'C, which substance has the lowest solubility?

a)

KNO3

b)

KBr

c)

NaCl

d)

Yb2(SO4)3

13.

K2SO4

a)

Soluble

b)

Insoluble

14.

At what temperature can you fully dissolve 140g of NaNO3?

a)

62

b)

73

c)

81

d)

You cannot determine this

15.

How much NaBr solute is saturated at 70 degrees?

a)

110

b)

120

c)

130

d)

140

16.
Which cube(s) has the most surface area?
a)
left cube
b)
middle cubes
c)
right cubes
17.

(NH4)3PO4

a)

Soluble

b)

Insoluble

18.

CuCl2

a)

Soluble

b)

Insoluble

19.
How many grams of SO2 can dissolve at 50 ⁰C?
a)
5 g
b)
10 g
c)
20 g
d)
39 g
20.

How much C12H22O11 solute is saturated at 40 degrees?

a)

240

b)

220

c)

230

d)

250

21.

1. What is the molarity of a solution prepared by dissolving 37.94 g of potassium hydroxide in some water and then diluting the solution to a volume of 500.00 mL?

(a)  

22.

2. What is the molarity of a salt solution made by dissolving 280. mg of NaCl in 200 mL of water? Assume the final volume is the same as the volume of water.

(a)  

23.

5. What is the molarity of a solution prepared by dissolving 33.4 g of sodium chloride in some water and then diluting the solution to a volume of 300.00 mL?

(a)  

24.

8. What is the concentration of a solution with a volume of 2.5 liters containing 660 grams of calcium?

(a)  

25.

10. 4.2 moles of lithium fluoride are dissolved in 250 milliliters of solution.

(a)  

26.

11. If I have 340 mL of a 0.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it?

(a)  

27.

12. If I dilute 250 mL of 0.10 M lithium acetate solution to a volume of 750 mL,what will the concentration of this solution be?

(a)  

28.

15. If I add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the molarity of the diluted solution be?

(a)  

29.

18. How much water would I need to add to 500 mL of a 2.4 M KCl solution to make a 1.0 M solution?

(a)  

30.

19. I have 345 mL of a 1.5 M NaCl solution. If I boil the water until the volume of the solution is 200 mL, what will the molarity of the solution be?

(a)  

31.
The alka seltzer tablet is an example of what?
a)
a solute
b)
a solvent
c)
a catalyst
d)
a polar molecule
32.
Which statement below best explains the picture?
a)
the left beaker is unsaturated, and the right beaker is saturated
b)
the left beaker is saturated, and the right beaker is unsaturated
c)
the left beaker has electrolytes, and the right beaker has nonelectrolytes
d)
both beakers are supersaturated, but the left beaker is crystallizing
33.
What does this image show you about this solution? (Select all that apply)
a)
the solution has electrolytes
b)
the solution is unsaturated
c)
the solution is saturated
d)
there are no electrolytes
e)
it is only water
34.
What kind of solution could cause this to happen?
a)
solution full of electrolytes
b)
supersaturated solution
c)
saturated solution
d)
unsaturated solution
35.
First Name
4 lines
36.

What volume of a 1.2 M solution of Na2CO3 can be made from 800 ml. of a 4.2 molar solution of this solute? (answer in Liters)

(a)  

37.

How many grams of sodium fluoride are needed to make 6.3 liters of a 3.6 molar solution

(a)  

38.

How much water must be added to 500 ml. of a 2.6 M solution of lead acetate to reduce the concentration to 1.6 molarity?

(a)  

39.

How many moles of Ca(HCO3)2 are present in 4.5 liters of a 2.5 molarity solution?

(a)  

40.

What is the molarity of a solution containing 490 grams of H2SO4 in 6.0 liters of solution?

(a)  

41.

How many grams of sodium hydroxide pellets are required to prepare 500 ml. of a 0.15 molar solution?

(a)  

42.

What mass of potassium hydroxide is needed to prepare 800 ml. of 0.25 molar solution?

(a)  

43.

When 200 ml of 1.5 M KCl solution are diluted with water to yield 350 ml, what is the new molar concentration?

(a)  

44.

How many ml. of 4.00 HCl M are needed to prepare 1500 ml. of 0.500 M HCl solution?

(a)  

45.

A 1.7 molar solution of potassium dichromate has 220 grams of solute. Calculate the volume this solution must have.

(a)  

46.
BONUS: Consider the terms "concentrated" and "dilute". Are these qualitative or quantitative terms?
a)
qualitative
b)
quantitative
47.

How much KNO3 solute is saturated at 40 degrees?

a)

75

b)

55

c)

65

d)

85

48.

How much C12H22O11 solute is saturated at 40 degrees?

a)

240

b)

220

c)

230

d)

250

49.

How much Ce2(SO4)3 solute is saturated at 80 degrees?

a)

20

b)

15

c)

30

d)

2

50.

How much NaBr solute is saturated at 70 degrees?

a)

110

b)

120

c)

130

d)

140

51.

Which solute is MOST likely a gas?

a)

KNO3

b)

NaNO3

c)

KCl

d)

Ce2(SO4)3

52.

At what temperature can you fully dissolve 140g of NaNO3?

a)

62

b)

73

c)

81

d)

You cannot determine this

53.

At what temperature can you fully dissolve 60g of KNO3?

a)

27

b)

30

c)

37

d)

You cannot determine this

54.

At what temperature can you fully dissolve 120g of NaBr?

a)

70

b)

20

c)

100

d)

You cannot determine this

55.

What type of a solution is 60g NaNO3 at 40ºC in 100g H2O?

a)

Saturated

b)

Unsaturated

c)

Supersaturated

56.

What type of a solution is 100g KNO3 at 40ºC in 100g H2O?

a)

Saturated

b)

Unsaturated

c)

Supersaturated

57.

What type of a solution is 260g sugar at 50ºC in 100g H2O?

a)

Saturated

b)

Unsaturated

c)

Supersaturated

58.

What type of a solution is 25g NaCl at 70ºC in 100g H2O?

a)

Saturated

b)

Unsaturated

c)

Supersaturated

59.

What type of a solution is 55g KCl at 70ºC in 100g H2O?

a)

Saturated

b)

Unsaturated

c)

Supersaturated

60.
State whether the following compound is soluble or insoluble.  calcium carbonate CaCO3 
a)
soluble
b)
insoluble
61.
State whether the following compound is soluble or insoluble. potassiun bromide KBr
a)
Soluble
b)
Insoluble
62.
State whether the following compound is soluble or insoluble. Zinc hydroxide Zn(OH)2
a)
Soluble 
b)
Insoluble
63.
State whether the following compound is soluble or insoluble. iron(ii) sulfide FeS
a)
soluble
b)
insoluble
64.
How many liters would you need to make a 1 M solution if you have 6 mol of Sodium Hydroxide? 
a)
2
b)
3
c)
4
d)
6 
65.
What is the molarity of 4 g of NaCl (MM=58.45) in 3,800 mL of solution?
a)
0.018 M
b)
0.0011 M
c)
1.052 M
d)
0.062 M
66.
How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl (MM = 58.45)?
a)
0.625 g NaCl
b)
625 g NaCl
c)
36.5 g NaCl
d)
0.04 mol NaCl
67.
How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL?
a)
1074 mol
b)
0.069 mol
c)
1.07 mol
d)
62.7 mol
68.
Calculate the molarity of the following solution:  1.0 mole of KCl in 750.0 mL of solution.
a)
0.750 M
b)
99 M
c)
1.3 M
d)
2.0 M
69.
True or False? The higher the concentration of a solution the less solutes it has in it.
a)
True
b)
False

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