EXERCISE
1.
Match the solutions in List B with the list of pH Readings.
pH Readings
List B
____ 1. pH2
A. strong acid.
____ 2. pH5
B. strong alkaline.
____ 3. pH7
C. distilled water.
____ 4. pH8
D. weak acid.
____ 5. pH12
E. weak alkaline.
2-2.
IDENTIFY WHETHER TWO OR MORE SOLUTIONS ARE LIGHTER OR HEAVIER THAN
DISTILLED WATER, GIVEN THEIR SPECIFIC GRAVITY READINGS.
a. "Specific Gravity" can be defined as the measurement of the weight of a solution in relation
to the weight of distilled water.
b. The instrument used to measure the specific gravity of a solution is called a hydrometer.
Distilled water is the standard for measurement of other solutions and has a specific gravity of 1.000.
Solutions which are lighter than distilled water have specific gravities less than 1.000. Solutions which
are heavier than distilled water have specific gravities greater than 1.000.
EXERCISE
2.
A solution with a specific gravity of 1.520 is LIGHTER/HEAVIER than distilled water.
(Circle the correct choice.)
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