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Worksheets

Solubility

Total questions: 12

Worksheet time: 46mins

Name
Class
Date
1.

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

a)

KNO3

b)

KBr

c)

NaCl

d)

Yb2(SO4)3

2.

At which temperature do KBr and KNO3 have the same solubility?

a)

60

b)

55

c)

50

d)

Never

3.

The solubility of Yb2(SO4)3 ________________ with added temperature.

a)

increases

b)

decreases

c)

remains the same

4.

At 80'C, KBr's solubility is:

a)

100

b)

90

c)

80

d)

0

5.

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

6.

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

7.

Identify if the following solution would be saturated, unsaturated, or supersaturated: 103 g KBr at 70'C.

a)

Unsaturated

b)

Saturated

c)

Supersaturated

8.

Identify how many grams of KNO3 is required to make a saturated solution at 40'C.

a)

50 g

b)

45 g

c)

60 g

d)

33 g

9.

How could you change a saturated solution to an unsaturated solution?

a)

Add solvent

b)

Add solute

10.

Water becomes __________ changing from a solid to a liquid

a)

more dense & more kinetically chaged

b)

less dense & less kinetically charged

c)

more dense & less kinetically charged

d)

less dense & more kinetically charged

11.

Identify the saturation associated with the product of this experiment.

a)

Unsaturated

b)

Saturated

c)

Supersaturated

12.

Identify a method to decrease the dissolving rate of a solution:

a)

decrease the temperature

b)

add KE

c)

stir the solution

d)

increase the temperature