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Worksheets

Acids and Bases and pH

Total questions: 20

Worksheet time: 18mins

Name
Class
Date
1.
Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?
a)
strongly acidic
b)
slightly acidic
c)
strongly basic
d)
slightly basic
2.

The table shows the pH of several solutions. Which solution is the most acidic?

a)

vinegar

b)

milk

c)

water

d)

bleach

3.

Zn(OH)2 is an example of a...

a)

acid

b)

base

c)

salt

d)

water

4.

H3PO4 is an example of a ...

a)

acid

b)

base

c)

salt

d)

non-electrolyte

5.

Four substances were tested for pH, lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), and milk (pH 6). Which of the following correctly lists the substances from most basic to acidic?

a)

lemon juice, milk, baking soda, bleach

b)

bleach, baking soda, milk, lemon juice

c)

milk, lemon juice, baking soda, bleach

d)

baking soda, bleach, lemon juice, milk

6.

If a solution has a pH of 1.5, then litmus would turn

a)

red

b)

purple

c)

blue

d)

yellow

7.

A sugar solution has a pH of 7. This means the sugar solution is:

a)

acidic

b)

basic

c)

neutral

8.

Which of these is a property of acidic solutions?

a)

they taste sour

b)

they feel slippery

c)

they are in many cleaning products

d)

they taste bitter

9.

An unknown substance was tested and found to have an extremely high concentration of hydroxide ions, OH-. and very low concentration of hydronium ions, H3O+. Which pH would make the most sense?

a)

pH = 2

b)

pH = 6

c)

pH = 8

d)

pH = 12

10.

What is the fomula of carbonic acid?

a)

H2CO3

b)

H2CrO4

c)

H2C2O4

d)

HCO3

11.

What is the formula of chlorous acid?

a)

HClO3

b)

HClO2

c)

HClO

d)

HCl

12.

The name of the acid with the formula HF is ____.

a)

flouric acid

b)

hydrofluoric acid

c)

fluorate acid

d)

hydrogen fluoridic acid

13.
What is the formula for phosphorous acid?
a)
H3PO4
b)
H2PO4
c)
H3P
d)
H3PO3
14.

The table shows the pH of several solutions. Which solution has the greatest concentration (amount) of H+ ions?

a)

vinegar

b)

milk

c)

water

d)

bleach

15.

The table shows the pH of several solutions. Which solution has the greatest concentration (amount) of OH- ions?

a)

vinegar

b)

milk

c)

water

d)

bleach

16.

Bases, also known as ​ (a)   will turn litmus paper ​ (b)   . This is because they have a pH ​ (c)   . They taste ​ (d)   .

Choose from the below words
alkali and OH-
blue
above 7
bitter
below 7
H+
red
sour
17.

Acids, also known as ​ (a)   , will turn litmus paper ​ (b)   . This is because they have a pH ​ (c)   . They taste ​ (d)   .

Choose from the below words
H+
red
below 7
sour
bitter
above 7
blue
18.

HCl is a strong acid.

What is the pH of a 0.001 M HCl solution?

a)

1

b)

3

c)

5

d)

11

19.

NaOH is a strong base.

What is the pH of a 0.01 M NaOH soltuion?

a)

2

b)

9

c)

12

d)

14

20.
Strong acids and bases...
a)

do not break apart into ions (non-electrolyte)

b)

partially break apart into ions (weak electrolyte)

c)

completely break apart into ions (non-electrolyte)

d)

completely break apart into ions (strong electrolyte)