Microsoft Word - Acids and Bases (V1).docx
Name: Date: Period:
Acids and Bases
(Assignment for May 6 and 7, 2021)
Part 1: Comprehension Questions
1. How did the A
henius definition fail to explain the behavior of bases?
2. Compare and contrast the A
henius, Brønsted-Lowry, and Lewis definitions of acids and
ases. How are they similar? How do they differ?
Part 2: Brønsted-Lowry Acids and Bases
Label the Brønsted-Lowry acids and bases in each reaction. Draw an a
ow to show the direction
of proton (H+) transfer.
Example:
?!? + ??" ⟷??" + ???
1. ?!??# + ??" ⟷???#" + ?!?
2. ???#" + ?!? ⟷ ??#" + ?$?%
3. ??$ + ?!? ⟷ ??#% + ??"
4. ?!? + ?!? ⟷ ?$?% + ??"
Acid Base
Base Acid
Name: Date: Period:
Label the pH scale as acidic, neutral, or basic:
Part 3: Use the pH scale to identify if these substances are acidic, basic, or neutral (circle only
one):
a. Lemon Juice (pH = 2) (acidic, basic, or neutral)
. Seawater (pH = 6) (acidic, basic, or neutral)
c. Bleach (pH = XXXXXXXXXXacidic, basic, or neutral)
d. Milk (pH = XXXXXXXXXXacidic, basic, or neutral)
e. Ammonia (pH = XXXXXXXXXXacidic, basic, or neutral)
f. Hydrochloric Acid (pH = 0) (acidic, basic, or neutral)
g. Vinegar (pH = XXXXXXXXXXacidic, basic, or neutral)
h. Black Coffee (pH = 5) (acidic, basic, or neutral)
i. Orange Juice (pH = 3) (acidic, basic, or neutral)
j. Water (pH = 7) (acidic, basic, or neutral)
k. Drain Cleaner (pH = 14) (acidic, basic, or neutral)
Part 4: Label the pH scale on top with each of the substances in Part 3. Order those substances
y their acidity on the pH scale. Start with the most acidic on the left and end with the most basic.
XXXXXXXXXX XXXXXXXXXX
__________ __________ __________