Name:________________________________________
Aim #27- Solutions and Solubility
1. What is a solution?
Date:________________
2. What are the parts of a solution?
(Ex. Lemonade)
a. Solute:
Ex.
b. Solvent:
Ex.
3. What is Solubility?
a. Soluble:
b. Insoluble:
4. Factors that Affect the Rate of Solubility:

Amount of solute: the rate of solubility _____________
the more solute added

Temperature: as you increase the temperature, you _______________
the rate of solubility
Why?

Surface Area: the smaller the particles, the _______________ the rate of solubility.
Ex: Crushed vs Cubed?
Name:________________________________________
Aim #27- Solutions and Solubility
Date:________________
Solutions from A to Z
*Here are some situations that involve real solutions. Read through them with a classmate. For each situation, do the
following:
1. Identify the type of solution (solid in a liquid, liquid in a liquid, etc.) Enter your responses in the table below.
2. Identify the solvent and solute in each solution. Enter the information in the table below.
Situation
A. Fish breathe oxygen, which is
dissolved in water.
B. A 100 g sample of vinegar is made
up of 5 g of liquid acetic acid and
95 g of water.
C. A clear mixture of baking soda and
water often helps an upset stomach.
D. Brass is an alloy that can be made
by mixing 65 parts of molten
copper with 35 parts of molten zinc.
E. Alcohol is added to gasoline to
make gasohol.
F. The antifreeze used in a car radiator
is a mixture of liquid ethylene
glycol and water. The ethylene
glycol is present in the greater
quantity.
G. On a windy day, snow and ice
disappear into the air without
melting.
H. Sugar, lemon juice, and water make
up lemonade.
I.
Rubbing alcohol is a good de-icer
for locks because it can dissolve
water drops frozen in the keyhole.
J. When you open a bottle of
sparkling water, bubbles of gas
suddenly appear throughout the
water and rise to the top.
K. A few drops of food coloring can
change the color of water.
L. Pulp mills discharge a gas that
spreads through the air. The gas
can be smelled kilometers away.
M. Sulfur dioxide in the air mixes with
water droplets in the atmosphere to
form acid rain.
Type of solution
Solute
Solvent
Name:________________________________________
Aim #27- Solutions and Solubility
N. Minerals in the ground can be
dissolved by acid rain.
O. Rain falling on the ground mixes
with carbon dioxide from decaying
plants and the roots of plants. The
result is the formation of a weak
acid.
P. In some places, this weak acid
dissolves limestone to make
limestone caves.
Q. Water from lakes and streams is
continually evaporating into the air.
R. Clear ocean water contains a
considerable amount of sodium
chloride and potassium chloride
(two types of salt).
S. Air is made up of almost four parts
nitrogen gas to one part oxygen gas.
T. A bit of table salt in water helps
heal cuts.
U. When an effervescent tablet is
added to water, it fizzes and then
becomes clear. The solution tastes
a little salty.
V. Runoff water from some farms and
forests contains insecticides.
W. There are traces of DDT in ocean
water, even in the Arctic and
Antarctic Oceans.
X. If iodine crystals are dropped into a
dry, warm container, a purple vapor
suddenly appears and spreads
evenly through the air in the
container.
Y. When foods are boiled, some of
their valuable vitamins are lost in
the process
Z. Gold jewelry usually contains some
copper to make it stronger and less
expensive.
Date:________________
Name:________________________________________
Date:________________
Aim #27- Solutions and Solubility
*Name 3 ways that you could increase the solubility of ice tea mix in a glass of water:
i.
ii.
iii.
5. Solutions
b. Dilute/unsaturated:
c. Supersaturated:
d. Concentrated:
e. Saturated:
*Name two ways you could change the concentration of a solution:
i.
ii.
6. Solubility Graphs:
a. Each line on the solubility graph
represents a(n)
____________________ solution.
b. Anything above that specific
line is a(n)
____________________ solution.
c. Anything below that specific
line is a(n)
_____________________ solution.
Name:________________________________________
Aim #27- Solutions and Solubility
Date:________________
1. How many grams of NH4Cl will dissolve at 80°C to make this solution saturated?
2. What temperature will dissolve 60g of HCl to make a saturated solution?
3. What kind of solution is it if 50g of HCl is dissolved at a temperature of 15 °C?
4. Describe the relationship between the water temperature and the amount of HCl that
will dissolve:
5. Describe the relationship between the water temperature and the amount of NH4Cl
that will dissolve:
Name:________________________________________
Date:________________
Aim #27- Solutions and Solubility
*Use the provided solubility graph to answer the following questions:
For questions 1 – 4 an amount of solute is
given, and a temperature is stated. If all of
the solute could be dissolved in 100 g of
water at the given temperature, would the
resulting solution be unsaturated, saturated,
or supersaturated?
1. 60 g KCl at 70 C ___________________
2. 10 g KClO3 at 60 C _________________
3. 80 g NaNO3 at 10 C _________________
4. 70 g CaCl2 at 20 C __________________
For questions 5 – 8 a solute and temperature are given. Tell how many grams of each solute must
be added to 100 g of water to form a saturated solution at the given temperature.
6. Pb(NO3)2 at 10 C ______________
7. NaCl at 20 C ________________
7. Ce2(SO4)3 at 50 C ______________
8. K2Cr2O7 at 50 C ______________
Challenge Questions:
For questions 9 and 10 underline the solution that is more concentrated.
9. At 10 °C: a saturated solution of KNO3 or a saturated solution of CaCl2.
10. At 50 °C: a saturated solution of KNO3 or an unsaturated solution of NaNO3 consisting of 90 g of
the solute dissolved in 100 g of water.
For questions 11 – 12, show your work and circle your final answer.
11. If 115 g KNO3 are added to 100 g of water at 35 °C, how many grams do not dissolve?
12. What mass of KCl would be needed to form a saturated solution if the KCl was dissolved in 200 g
of water at 80 °C?