AnswersCrowley Original Credit Chemistry BProperties of Acids and Bases

Properties of Acids and Bases Answers

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1
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Identify each substance as an acid or a base.liquid drain cleaner, pH 13.5

A
acidic
B
basic
C
neutral
2
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milk, pH 6.6

A
acidic
B
basic
C
neutral
3

Which substance would be the closest to a neutral pH?

A
household bleach
B
vinegar
C
soda
D
blood
4

an aqueous solution of NaOH

A
pH = 13
B
pH = 7
C
pH = 4
5

Which of these substances has the highest pOH?

A
0.10 M HCl, pH = 1
B
0.001 M HNO3, pH = 3
C
0.01 M NaOH, pH = 12
6

Which of these substances is the least acidic?

A
solution A, pOH = 1.5
B
solution B, pOH = 7.0
C
solution C, pOH = 13.5
7

Choose the most acidic substance in the group.

A
lemon juice, pH = 2.25
B
orange juice, pH = 3.75
C
milk, pH = 6.6
D
seawater, pH = 8
8

Choose the most alkaline substance in the group.

A
soda, pH = 2.5
B
household vinegar, pH = 3
C
distilled water, pH = 7.0
D
milk of magnesia, pH = 10.5
9

Which of these substances is the most basic (alkaline)?

A
solution A, pOH = 1.5
B
solution B, pOH = 7.0
C
solution C, pOH = 13.5
10

Which of these substances has the lowest pH?

A
0.5 M HBr, pOH = 13.5
B
0.05 M HCl, pOH = 12.7
C
0.005 M KOH, pOH = 2.3
11

n =

A
4
B
–4
C
10
D
–10
12

n =

A
3
B
–3
C
11
D
–11
13

an aqueous solution of HNO3

A
pH = 12.5
B
pH = 7.0
C
pH = 2.5
14

an aqueous solution of NaCl

A
pH = 10
B
pH = 8
C
pH = 3
15

Which equation correctly shows how you could calculate [OH–] from [H+]?

A
Option
B
Option
16

What is the pH of a solution of H2SO4 that has [H3O+] = 5.45 × 10–5 M? Round to the nearest hundredth.

Answer:

4.26

17

What is the pOH of a solution of HNO3 that has [OH– ] = 9.50 × 10–9 M? Round to the nearest hundredth.

Answer:

8.02

18

Typical household bleach has a pH of 13. What is the H3O+ concentration in household bleach? Round to the nearest hundredth. × 10n M

Answer:

1.00

19

n =

Answer:

-13

20

n =

Answer:

-10

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