10.35.M - Lesson Review: pH Lessons

Question 1

Which of the following is an acid?
tomato juice
bleach
water
blood

Answer 1

tomato juice

Question 2

Which of the following is a base?
hand soap
gastric juices
water
orange juice

Answer 2

hand soap

Question 3

On the pH scale, numbers 8 and above represent the __________.
bases
acids
solutions
neutrals

Answer 3

bases

Question 4

According to the pH chart, which is the strongest base?

NaOH
blood
saliva
HCl

Answer 4

NaOH

Question 5

According to the pH chart, which is the strongest acid?

lemon juice
NaOH
blood
bleach

Answer 5

lemon juice

Question 6

What is the pH of healthy water that contains no other chemicals?
7
0
-2
9

Answer 6

7

Question 7

The pH of a cup of black coffee is 5, while the pH of a glass of tomato juice is 4. Comparing the pH of the two liquids, the tomato juice has _______________ [H+] than the coffee.
10 times more
half as many
10 times less
100 times more

Answer 7

10 times more

Question 8

The pH scale runs from 0 to 14 and is an indication of how acidic or basic a solution is. A pH close to 0 indicates a/an _______ solution, and a pH near 14 indicates a/an _______ solution.
acidic; basic
basic; acidic
neutral; basic
acidic; neutral

Answer 8

acidic; basic

Question 9

Which is the most accurate way to measure pH?
pH meter
litmus paper
educated guess
electrode sampler

Answer 9

pH meter

Question 10

Which of the following is a base?
soap
hydrochloric acid
orange juice
Sprite

Answer 10

soap