Answers26-27 CFISD TX-Chemistry A CRMeasures of Concentration: Molarity

Measures of Concentration: Molarity 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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an aqueous solution of HNO3

A
pH = 12.5
B
pH = 7.0
C
pH = 2.5
3

an aqueous solution of NaCl

A
pH = 10
B
pH = 8
C
pH = 3
4

an aqueous solution of NaOH

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

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
6

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
7

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
8

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
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

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

A
Option
B
Option

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