Solubility - Revsworld

1. According to Reference Table G, which of these
substances is most soluble at 60ºC?
1) NaCl
2) KCl
3) KClO 3
4) NH 4 Cl
2. Solubility data for four different salts in water at 60°C
are shown in the table below.
5. Which of the salts listed below is most soluble at 60ºC?
1) NaNO 3
2) KNO 3
3) NH 4 Cl
4) KCl
6. According to Table F, which of these salts is least
soluble in water?
1) LiCl
2) RbCl
3) FeCl 2
4) PbCl 2
7. A student tested the solubility of a salt at different
temperatures and then used Reference Table g to identify
the salt. The student's data table appears below.
Which salt is most soluble at 60°C?
1) A 3) C
2) B 4) D
3. According to Reference Table F, which compound is
most soluble?
1) AgBr
2) PbCl 2
3) AgI
4) CaCl 2
4. As the temperature increases from 0ºC to 25ºC the
amount of NH 3 that can be dissolved in 100 grams of
water
1) decreases by 10 grams 3) increases by 10 grams
2) decreases by 40 grams 4) increases by 40 grams
What is the identity of the salt?
1) potassium nitrate 3) potassium chlorate
2) sodium chloride 4) ammonium chloride
8. According to Reference Table F, which substance is
most soluble?
1) AgI
2) CaSO 4
3) PbCl 2
4) (NH 4 ) 2 CO 3
9. Based on Reference Table F, which salt is least soluble?
1) FeCO 3
2) Na 2 CO 3
3) BaCl 2
4) CaCl 2

10. A student obtained the following data in determining the 12. Given the diagram below that shows carbon dioxide in
solubility of a substance.
an equilibrium system at a temperature of 298 K and a
pressure of 1 atm:
Which graph best represents the solubility curve drawn
from the results obtained by the student?
1)
Which changes must increase the solubility of the carbon
dioxide?
1) increase pressure and decrease temperature
2) increase pressure and increase temperature
3) decrease pressure and decrease temperature
4) decrease pressure and increase temperature
13. A gas is most soluble in a liquid under conditions of
1) high temperature and high pressure
2) high temperature and low pressure
2)
3) low temperature and high pressure
4) low temperature and low pressure
14. Based on Reference Table G, which of the following
substances is most soluble at 60ºC?
1) NH 4 Cl
2) KCl
3) NaCl
4) NH 3
15. Which compound decreases in solubility as the
3)
temperature of the solution is increased from 10ºC to
50ºC?
1) NH 4 Cl
2) NaCl
3) NH 3
4) NaNO 3
16. The attraction between water molecules and an Na + ion
or a Cl – ion occurs because water molecules are
1) linear 3) polar
4)
2) symmetrical 4) nonpolar
17. Based on Reference Table F, which of the following
compounds is least soluble in water?
1) NaCl
2) Pb 2 ClO 3
3) Na 2 CrO 4
4) PbCrO 4
18. The solubility of a salt in a given volume of water
depends primarily on the
11. According to Reference Table F, which of these
1) surface area of the salt crystals
compounds is most soluble at 298 K and 1 atm?
2) temperature of the water
1) PbCl 2
3) rate at which the salt and water are stirred
2) AgCl
4) pressure on the surface of the water
3) PbCrO 4
4) PbCO 3

19. According to Reference Table G, which of the following
substances is least soluble in 100 grams of water at 50ºC?
1) NaCl 3) NH 4 Cl
2) KCl 4) HCl
20. The graph below represents four solubility curves.
Which curve best represents the solubility of a gas in
water?
27. In an aqueous solution of potassium chloride, the solute is
1) Cl
2) K
3) KCl
4) H 2 O
28. According to Reference Table G, how many grams of
KNO 3 would be needed to saturate 200 grams of water at
70ºC?
1) 43 g 3) 134 g
2) 86 g 4) 268 g
29. A student determined the mass, in grams, of compound X
that would saturate 30. grams of water over a
temperature range of 40.ºC in 10.-degree intervals. The
results are tabulated below.
1) A 3) C
2) B 4) D
21. Which of the following compounds is least soluble in
water?
1) copper (II) chloride 3) iron (III) hydroxide
2) aluminum acetate 4) potassium sulfate
22. When PbI 2 (s) is added to Na 2 CO 3 (aq), a white precipitate
is formed. According to Reference Table F, the white
precipitate most likely is
1) KNO 3
2) PbCO 3
3) NaI
4) Na 2 CO 3
23. A change in pressure would have the greatest effect on
the solubility of a
1) solid in a liquid 3) liquid in a liquid
2) gas in a liquid 4) liquid in a solid
24. Based on Reference Table F, which of the following
saturated solutions would be the least concentrated?
1) sodium sulfate 3) copper (II) sulfate
2) potassium sulfate 4) barium sulfate
25. Which compound is most soluble in water?
1) silver acetate 3) silver nitrate
2) silver chloride 4) silver sulfate
26. As the pressure on a gas confined above a liquid
increases, the solubility of the gas in the liquid
1) decreases 3) remains the same
2) increases
If this solubility trend continues, what is the total number
of grams of compound X that will dissolve in 30. grams
of water at 60.ºC?
1) 16 3) 48
2) 32 4) 64
30. At room temperature, the solubility of which solute in
water would be most affected by a change in pressure?
1) methanol 3) carbon dioxide
2) sugar 4) sodium nitrate
31. According to Reference Table F, which compound is
most soluble in water?
1) BaCO 3
2) BaSO 4
3) ZnCO 3
4) ZnSO 4
32. Based on Reference Table G, what change will cause the
solubility of KNO 3 (s) to increase?
1) decreasing the pressure
2) increasing the pressure
3) decreasing the temperature
4) increasing the temperature
33. According to the Reference Table G, which of the
following substances is least soluble in 100 grams of H 2
O(…) at 50ºC?
1) KCl 3) NH 4 Cl
2) NaCl 4) HCl
34. Carbon dioxide gas is most soluble in water under
conditions of
1) high pressure and low temperature
2) high pressure and high temperature
3) low pressure and low temperature
4) low pressure and high temperature

35. Based on Reference Table G, what is the maximum
number of grams of KCl(s) that will dissolve in 200
grams of water at 50°C to produce a saturated solution?
1) 38 g 3) 58 g
2) 42 g 4) 84 g
36. Which salt has the greatest change in solubility between
30ºC and 50ºC?
1) KNO 3 3) NaNO 3
2) KCl 4) NaCl
37. According to Reference Table G, which compound's
solubility decreases most rapidly when the temperature
increases from 50ºC to 70ºC?
1) NH 3
2) HCl
3) SO 2
4) KNO 3
38. A 2.00-liter sample of a gas has a mass of 1.80 grams at
STP. What is the density, in grams per liter, of this gas at
STP?
1) 0.900 3) 11.2
2) 1.80 4) 22.4
39. A student obtained the following data in a chemistry
laboratory.
Based on Reference Table g, which of the trials seems to
be in error?
1) 1 3) 3
2) 2 4) 4
40. According to Reference Table G, how does a decrease in
temperature from 40°C to 20°C affect the solubility of
NH 3 and KCl?
1) The solubility of NH 3 decreases, and the
solubility of KCl decreases.
2) The solubility of NH 3 decreases, and the
solubility of KCl increases.
3) The solubility of NH 3 increases, and the
solubility of KCl decreases.
4) The solubility of NH 3 increases, and the
solubility of KCl increases.
41. Based on Reference Table G, which of the following
substances is most soluble at 50°C?
1) KClO 3
2) NH 3
3) NaCl
4) NH 4 Cl
42. At which temperature can water contain the most
dissolved oxygen at a pressure of 1 atmosphere?
1) 10.ºC 3) 30.ºC
2) 20.ºC 4) 40.ºC
43. According to Reference Table G, what is the
approximate difference between the amounts of KClO 3
and KNO 3 soluble in 100 grams of water at 40ºC?
1) 17 g 3) 47 g
2) 22 g 4) 64 g
44. At STP, which of these substances is most soluble in H 2
O?
1) CCl 4
2) CO 2
3) HCl
4) N 2
45. Which compound is least soluble in 100 grams of water
at 40°C?
1) SO 2
2) NaCl
3) KClO 3
4) NH 4 Cl
46. According to Reference Table G, a temperature change
from 10°C to 30°C would have the least effect on the
solubility of
1) NaCl
2) KClO 3
3) NH 3
4) SO 2

Reference Tables

Reference Tables

Reference Tables

Reference Tables

Answer Key
1. 4
2. 4
3. 4
4. 2
5. 1
6. 4
7. 3
8. 4
9. 1
10. 1
11. 2
12. 1
13. 3
14. 1
15. 3
16. 3
17. 4
30. 3
31. 4
32. 4
33. 2
34. 1
35. 4
36. 1
37. 1
38. 1
39. 4
40. 3
41. 4
42. 1
43. 3
44. 3
45. 1
46. 1
18. 2
19. 1
20. 2
21. 3
22. 2
23. 2
24. 4
25. 3
26. 2
27. 3
28. 4
29. 4