Getting to Know pH
Classifying Acids and Bases
The pH of a solution is a number which tells how acidic or basic a solution is.
pH values can
range from 0 to 14.
Determine whether the brief statements below describe an acid, a base
or a neutral solution.
On the blank in front of the statement,
type A for acid, B for base or N
for neutral
.
Some questions may have more than one answer.
1.
Blue litmus turns red.
2.
Red litmus doesn’t change color
3.
Contains more H+ than pure water
4.
pH 4
5.
pH 7
6. Vinegar
7. Contains less H+ than pure water
8. Drain cleaner
9.
Household ammonia
10.
Lemon juice
11.
On the pH scale below, label the pH ranges for strong acid, weak acid, strong base, weak
base, and neutral by
dragging the text boxes to the correct location
along the scale.
1
acid
acid/neutral
acid
acid
neutral
acid
base
base
base
acid
Strong acid
Neutral
Weak base
Weak acid
Strong base
Name:
Student ID:
Measuring the pH of a Solution
12.
Each pH increment on the pH scale represents a ten-fold change in H+ ion concentration.
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