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Interpreting Solubility Curves

Total questions: 20

Worksheet time: 3600secs

Name
Class
Date
1.

How much KNO3 solute is saturated at 40 degrees?

a)

75 grams

b)

55 grams

c)

65 grams

d)

85 grams

2.

How much C12H22O11 solute is saturated at 40 degrees?

a)

240 grams

b)

220 grams

c)

230 grams

d)

250 grams

3.

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

a)

20 grams

b)

15 grams

c)

30 grams

d)

2 grams

4.

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

a)

62 ºC

b)

73 ºC

c)

81 ºC

d)

You cannot determine this

5.

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

a)

27 ºC

b)

30 ºC

c)

37 ºC

d)

You cannot determine this

6.

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

a)

Saturated

b)

Unsaturated

c)

Supersaturated

7.

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

a)

Saturated

b)

Unsaturated

c)

Supersaturated

8.

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

a)

Saturated

b)

Unsaturated

c)

Supersaturated

9.

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

a)

Saturated

b)

Unsaturated

c)

Supersaturated

10.

What type of a solution is 60g KCl at 70ºC in 100g H2O?

a)

Saturated

b)

Unsaturated

c)

Supersaturated

11.

At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K2Cr2O7?

a)

60 ºC

b)

30 ºC

c)

50 ºC

d)

83 ºC

12.
How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?
a)
83 grams
b)
75 grams
c)
40 grams
d)
12 grams
13.

How many grams of K2Cr2O7, are soluble in 100 g of water at 90 ºC?

a)

85 grams

b)

70 grams

c)

40 grams

d)

15 grams

14.

How many grams of K2Cr2O7, are soluble in 50 g of water at 90ºC?

a)

70 grams

b)

35 grams

c)

140 grams

d)

105 grams

15.
Which substance is MOST soluble at 0 ºC?
a)
KI
b)
NaNO3
c)
NaCl
d)
Ce2(SO4)3
16.
Which solute is the least soluble at 90 ⁰C?
a)
SO2
b)
KClO3
c)
KI
d)
HCl
17.
Which of these solutes does not increase in solubility as temperature rises?
a)
NH3
b)
NaNO3
c)
KNO3
d)
NaCl
18.
When 20 grams of KNO3 is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:
a)
supersaturated
b)
saturated
c)
unsaturated
19.
When 50 grams of KCl is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:
a)
supersaturated
b)
unsaturated
c)
saturated
20.
When 42 grams of potassium chloride, is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:
a)
supersaturated
b)
saturated
c)
unsaturated

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