Page 249 - Teacher Preview Copy
P. 249
.
Topic 7: Solutions
11. Degree of solubility – Using the Solubility Curve Table G: Determine which solute is most (or
least) soluble, dilute, or concentrated
o
1. According to Table G, which of these substances is most soluble at 60 C?
1) NaCl 2) KCl 3) KClO3 4) NH4Cl
2. A saturated solution of which compound will be the least concentrated solution in 100 g of water
o
at 40 C?
1) SO2 2) NaCl 3) KClO3 4) NH4Cl
o
3. Based on Reference Table G, which of these substances is least soluble at 50 C? 4) NaNO3
1) KClO3
3) NaCl
2) NH3
o
4. Which of these saturated solution is the most dilute at 20 C? 4) NaCl (aq)
Teacher Preview Copy
1) KI (aq)
3) NaNO3 (aq)
2) KCl (aq)
Teacher Preview Copy
o
5. Which saturated salt solution is most concentrated at 60 C? 4) KCl (aq)
1) NaNO3(aq)
3) KNO4 (aq)
2) KClO3 (aq)
12. The solubility Curve Table: Miscellaneous questions
1. According to Reference Table G, which solution at equilibrium contains 50 grams of solute per 100
o
grams of H2O at 75 C? 3) A saturated solution of KCl
1) An unsaturated solution of KCl
2) An unsaturated solution of KClO3 4) A saturated solution of KClO3
2. Based on Reference Table G, which salt solution could contain 40 grams of solute per 100 grams of
o
water at 40 C?
1) A saturated solution of KClO3 3) An Unsaturated solution of NaCl
2) A saturated solution of HCl 4) An unsaturated solution of NH4Cl
o
3. A solution contains 100 grams of a nitrate salt dissolved in 100 grams of water at 50 C. The solution
could be a 3) Supersaturated solution of KNO3
1) Supersaturated solution of NaNO3
2) Saturated solution of NaNO3 4) Saturated solution of KNO3.
4. A solution is formed by dissolving 45 grams of NH4Cl in 100 grams of H2O at 70 C. Which statement
o
correctly describes this solution?
1) NH4Cl is the solute, and the solution is saturated
2) NH4Cl is the solute, and the solution in unsaturated
3) NH4Cl is the solvent, and the solution is saturated
4) NH4Cl is the solvent, and the solution is unsaturated
5. According to Reference Table G, which is the best description of a system prepared by dissolving 30
o
grams of NH3(g) in 100 grams of water at 20 C?
1) A saturated solution of NH4 with no excess NH3(g)
2) A saturated solution of NH3 in contact with excess NH3(g)
3) An unsaturated solution of NH3 with no excess NH3(g)
4) An unsaturated solution of NH3 in contact with excess NH3(g)
6. A student adds solid KCl to water in a flask. The flask is sealed with a stopper and thoroughly shaken
until no more solid KCl dissolves. Some KCl is still visible in the flask. The solution in the flask is
1) Saturated and is at equilibrium with the solid KCl
2) Saturated and is not at equilibrium with the solid KCl
3) Unsaturated and is at equilibrium with the solid KCl
4) Unsaturated and is not at equilibrium with the solid KCl
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 239
Topic 7: Solutions
11. Degree of solubility – Using the Solubility Curve Table G: Determine which solute is most (or
least) soluble, dilute, or concentrated
o
1. According to Table G, which of these substances is most soluble at 60 C?
1) NaCl 2) KCl 3) KClO3 4) NH4Cl
2. A saturated solution of which compound will be the least concentrated solution in 100 g of water
o
at 40 C?
1) SO2 2) NaCl 3) KClO3 4) NH4Cl
o
3. Based on Reference Table G, which of these substances is least soluble at 50 C? 4) NaNO3
1) KClO3
3) NaCl
2) NH3
o
4. Which of these saturated solution is the most dilute at 20 C? 4) NaCl (aq)
Teacher Preview Copy
1) KI (aq)
3) NaNO3 (aq)
2) KCl (aq)
Teacher Preview Copy
o
5. Which saturated salt solution is most concentrated at 60 C? 4) KCl (aq)
1) NaNO3(aq)
3) KNO4 (aq)
2) KClO3 (aq)
12. The solubility Curve Table: Miscellaneous questions
1. According to Reference Table G, which solution at equilibrium contains 50 grams of solute per 100
o
grams of H2O at 75 C? 3) A saturated solution of KCl
1) An unsaturated solution of KCl
2) An unsaturated solution of KClO3 4) A saturated solution of KClO3
2. Based on Reference Table G, which salt solution could contain 40 grams of solute per 100 grams of
o
water at 40 C?
1) A saturated solution of KClO3 3) An Unsaturated solution of NaCl
2) A saturated solution of HCl 4) An unsaturated solution of NH4Cl
o
3. A solution contains 100 grams of a nitrate salt dissolved in 100 grams of water at 50 C. The solution
could be a 3) Supersaturated solution of KNO3
1) Supersaturated solution of NaNO3
2) Saturated solution of NaNO3 4) Saturated solution of KNO3.
4. A solution is formed by dissolving 45 grams of NH4Cl in 100 grams of H2O at 70 C. Which statement
o
correctly describes this solution?
1) NH4Cl is the solute, and the solution is saturated
2) NH4Cl is the solute, and the solution in unsaturated
3) NH4Cl is the solvent, and the solution is saturated
4) NH4Cl is the solvent, and the solution is unsaturated
5. According to Reference Table G, which is the best description of a system prepared by dissolving 30
o
grams of NH3(g) in 100 grams of water at 20 C?
1) A saturated solution of NH4 with no excess NH3(g)
2) A saturated solution of NH3 in contact with excess NH3(g)
3) An unsaturated solution of NH3 with no excess NH3(g)
4) An unsaturated solution of NH3 in contact with excess NH3(g)
6. A student adds solid KCl to water in a flask. The flask is sealed with a stopper and thoroughly shaken
until no more solid KCl dissolves. Some KCl is still visible in the flask. The solution in the flask is
1) Saturated and is at equilibrium with the solid KCl
2) Saturated and is not at equilibrium with the solid KCl
3) Unsaturated and is at equilibrium with the solid KCl
4) Unsaturated and is not at equilibrium with the solid KCl
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 239
