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Acid/Base Equilibrium

Authored by Gale Hunt

Chemistry

11th - 12th Grade

Used 231+ times

Acid/Base Equilibrium
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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Identify the Bronsted Lowry Acid (A) and Base (B) in the given reaction.

A

B

C

D

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which is the weakest acid?

HF
HNO2
CH3COOH
HClO

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Consider the general equation for an acid in water:
HA(aq) + H2O ↔ H3O+ + A-
If there is a lot of product, what does that tell you about the acid?

Ka > 1  Strong acid
Ka > 1  Weak acid
Ka < 1  Strong acid
Ka < 1  Weak acid

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is a conjugate acid/base pair?

HCl/OCl-
H2SO4/SO42-
NH4+/NH3
H3O+/OH-

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The pH of a solution at 25C in which [OH-] = 3.9 x 10-5M is:

4.41
3.90
9.59
4.80

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calculate the pH of a 0.47M NH3 (Kb = 1.8 x 10-5) solution.

2.54
8.93
5.07
11.46

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calculate the [H+] in a solution that has a pH of 2.73.

5.4 x 10-12 M
1.9 x 10-3 M
2.7 M
11.3 M

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