Introduction to Solutions Worksheet
SCH3U
Solutions & Solubility
Name:
Date:
This Worksheet is to be a reference for you. Do not simply copy blindly from the glossary, this will NOT help you
understand. Look in the index for where the textbook discusses each topic in greater detail and use this, along with your own
brain to make notes that you can refer to later. You may also use google…just be careful about the reputability of your
sources, and be sure to cross-reference.
Are You Ready?
With a partner, go through the questions on p. 348-51. Can you answer them? If yes, you are ready for the exciting world of
solutions! If not, figure it out 
Let’s practice communication!
Hint: For good communication follow this model – define, explain, give an example. Diagrams are great too!
1. Distinguish between:
a) element and atom
b) molecule and compound
c) pure substance and mixture
d) heterogeneous and homogenous mixtures
e) saturated, unsaturated, and supersaturated
2. Explain how the following terms are related:
a) solution
b) solute
c) solvent
3. Explain how the following terms are related:
a) solubility
b) soluble vs. insoluble
c) miscible vs. immiscible
Let’s practice thinking!
Hint: Don’t give one-word answers! Explain, justify, evaluate – why? how?
1. Decide which is the solvent and which is the solute. Justify your answer.
a) Instant coffee dissolved in hot water. Sugar is also added to the solution.
b) Antifreeze consists of methanol dissolved in water. Blue colouring is also added as a safety precaution.
c) Carbonated drinks (soft drinks) consist of a flavoured liquid containing dissolved carbon dioxide gas.
d) Water, oil and salt are mixed together.
2. Draw a diagram of a molecule of NaCl. Draw a water molecule, labeling the partial charges. With reference to
intermolecular forces, suggest why water is a good solvent and why it is called the universal solvent.
3. Describe some factors that affect solubility. Thinking at the molecular level, explain why and how they affect solubility.
4. Review the concept of strong ionic bonds vs. weak ionic bonds. How do you think these concepts relate to a substance’s
solubility in water?
Time to practice your knowledge & understanding!
1. Types of Solutions - Read p354-357 and complete the following in the space provided.
Define
a. solution
b.
solute
c. solvent
d. homogeneous mixture
e. miscible
f.
immiscible
g. alloy
h. solubility
i.
saturated solution
j.
unsaturated solution
k. ionic compound
l.
polar molecule
m. non-polar molecule
2. Rate of Dissolving and Solubility - Read p359-369 and complete the following in the space provided:
Define
a. rate of dissolving
b. intermolecular forces
c. intramolecular forces
d. dipole
e. dipole-dipole attractions
f.
hydrogen bonding
g. ion-dipole attractions
h. hydrated ion
i.
electrolyte
j.
non-electrolyte
2. State three factors that affect the rate of dissolving.
i)
ii)
iii)
ii)
iii)
3. State three factors that affect solubility.
i)
Let’s Practice Application!
Application & Inquiry: Answer the following questions from your textbook:
p358 #6, 8, 12, 15 p370 #5, 8