E-3 Equilibria of Acids/Bases Flashcards Preview

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Flashcards in E-3 Equilibria of Acids/Bases Deck (39):
1

pH + pOH = 

14

2

Kw

[H3O+][OH-] = 1.00 x 10-14

3

Ka•Kb

1.0 x 10-14

4

What is the pH of a when [H3O+] = 1.0 x 10-3 M?

3

5

What is the pH of a when [H3O+] = 1.0 x 10-7 M?

7

6

What is the pH of a when [H3O+] = 1.0 x 10-13 M?

13

7

What is the pOH of a when [OH-] = 1.0 x 10-11 M?

11

8

What is the pOH of a when [OH-] = 1.0 x 10-5 M?

5

9

What is the pOH of a when [OH-] = 1.0 x 10-7 M?

7

10

What is the pH of a when [OH-] = 1.0 x 10-2 M?

14 - 2 = 12

11

What is the pH of a when [OH-] = 1.0 x 10-9 M?

14 - 9 = 5

12

What is the pH of a when [OH-] = 1.0 x 10-7 M?

14 - 7 = 7

13

The Ka of an acid is 1.0 x 10-4.  What is the Kb of its conjugate base?

1.0 x 10-14 / 1.0 x 10-4 = 1.0 x 10-10

14

The Ka of an acid is 1.0 x 10-12.  What is the Kb of its conjugate base?

1.0 x 10-14 / 1.0 x 10-12 = 1.0 x 10-2

15

The Kb of a base is 1.0 x 10-5.  What is the Ka of its conjugate acid?

1.0 x 10-14 / 1.0 x 10-5 = 1.0 x 10-9

16

The Kb of a base is 1.0 x 10-8.  What is the Ka of its conjugate acid?

1.0 x 10-14 / 1.0 x 10-8 = 1.0 x 10-6

17

Write out the Bronsted-Lowry Reaction for nitrous acid (HNO2).

HNO2 + H2O ⇔ NO2- + H3O+

18

Write out the Bronsted-Lowry Reaction for methyl amine (CH3NH2).

CH3NH2 + H2O ⇔ CH3NH3+ + OH-

19

Write out the Bronsted-Lowry Reaction for the hydrogen sulfate ion (HSO4-) acting as a base.

HSO4- + H2O ⇔ H2SO4 + OH-

20

Write out the Bronsted-Lowry Reaction for the hydrogen sulfate ion (HSO4-) acting as an acid.

HSO4- + H2O ⇔ SO42- + H3O+

21

Write out the law of mass action for the following reaction.

HF + H2O ⇔ F-+ H3O+

Ka = [F-][H3O+] / [HF]

22

Write out the law of mass action for the following reaction.

F- + H2O ⇔ HF+ OH-

Kb = [HF][OH-] / [F-]

23

What is the conjugate base of HF?

HF + H2O ⇔ F-+ H3O+

F-

24

What is the conjugate acid of H2O?

HF + H2O ⇔ F-+ H3O+

H3O+

25

What is the conjugate acid of CH3NH2?

CH3NH2 + H2O ⇔ CH3NH3+ + OH-

CH3NH3+

26

What is the conjugate acid of acetate ion (C2H3O2-)?

 

HC2H3O2

27

What is the conjugate base of HCN?

 

CN-

28

What is the conjugate base of HSO4-?

 

SO42-

29

What is the conjugate acid of HSO4-?

 

H2SO4

30

H2SO3

acid

31

NH3

Base

32

LiCl

Neutral

33

NH4Br

acid

34

NaClO

base

35

FeCl3

acid

36

NaHSO3

acid

37

Na2SO3

base

38

Ba(OH)2

base

39

KI

Neutral