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Wenger - AP Chemistry > E-3 Equilibria of Acids/Bases > Flashcards

E-3 Equilibria of Acids/Bases Flashcards

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1
Q

Complete the formula

pH + pOH =

A

14

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2
Q

Complete the following equation

Kw =

A

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

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3
Q

Complete the following equation.

Ka•Kb =

A

1.0 x 10-14

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4
Q

Don’t use a calculator!

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

A

3

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5
Q

Don’t use a calculator!

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

A

7

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6
Q

Don’t use a calculator!

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

A

13

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7
Q

Don’t use a calculator!

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

A

11

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8
Q

Don’t use a calculator!

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

A

5

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9
Q

Don’t use a calculator!

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

A

7

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10
Q

Don’t use a calculator!

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

A

14 - 2 = 12

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11
Q

Don’t use a calculator!

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

A

14 - 9 = 5

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12
Q

Don’t use a calculator!

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

A

14 - 7 = 7

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13
Q

Don’t use a calculator!

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

A

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

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14
Q

Don’t use a calculator!

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

A

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

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15
Q

Don’t use a calculator!

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

A

1.0 x 10-14 / 1.0 x 10-5 = 1.0 x 10-9

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16
Q

Don’t use a calculator!

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

A

1.0 x 10-14 / 1.0 x 10-8 = 1.0 x 10-6

17
Q

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

A

HNO2 + H2O ⇔ NO2- + H3O+

18
Q

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

A

CH3NH2 + H2O ⇔ CH3NH3+ + OH-

19
Q

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

A

HSO4- + H2O ⇔ H2SO4 + OH-

20
Q

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

A

HSO4- + H2O ⇔ SO42- + H<span>3</span>O+

21
Q

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

HF + H2O ⇔ F-+ H3O+

A

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

22
Q

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

F- + H2O ⇔ HF+ OH-

A

Kb = [HF][OH-] / [F-]

23
Q

What is the conjugate base of HF?

HF + H2O ⇔ F-+ H3O+

A

F-

24
Q

What is the conjugate acid of H2O?

HF + H2O ⇔ F-+ H3O+

A

H3O+

25
Q

What is the conjugate acid of CH3NH2?

CH3NH2 + H2O ⇔ CH3NH3+ + OH-

A

CH3NH3+

26
Q

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

A

HC2H3O2

27
Q

What is the conjugate base of HCN?

A

CN-

28
Q

What is the conjugate base of HSO4-?

A

SO42-

29
Q

What is the conjugate acid of HSO4-?

A

H2SO4

30
Q

acid, base, or neutral

H2SO3

A

acid

31
Q

acid, base, or neutral

NH3

A

Base

32
Q

acid, base, or neutral

LiCl

A

Neutral

33
Q

acid, base, or neutral

NH4Br

A

acid

34
Q

acid, base, or neutral

NaClO

A

base

35
Q

acid, base, or neutral

FeCl3

A

acid

36
Q

acid, base, or neutral

NaHSO3

A

acid

37
Q

acid, base, or neutral

Na2SO3

A

base

38
Q

acid, base, or neutral

Ba(OH)2

A

base

39
Q

acid, base, or neutral

KI

A

Neutral

Wenger - AP Chemistry (27 decks)

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