Equilibrium and Ionic Equilibrium — Practice

Question 1

For the reaction N₂(g) + 3H₂(g) ⇌ 2NH₃(g), the relation between Kp and Kc is

Accepted Answer

A

Question 2

For a reaction Kc = 50. At a given instant Q = 5. The reaction will

Accepted Answer

A

Question 3

For N₂(g) + 3H₂(g) ⇌ 2NH₃(g), increasing the pressure shifts the equilibrium

Accepted Answer

A

Question 4

Adding a catalyst to a reaction at equilibrium

Accepted Answer

A

Question 5

The conjugate base of H₂O is

Accepted Answer

A

Question 6

The pH of 0.01 M HCl is

Accepted Answer

A

Question 7

The pH of 0.001 M NaOH is

Accepted Answer

A

Question 8

The pH of a 0.1 M weak acid with Ka = 10⁻⁵ is

Accepted Answer

A

Question 9

The degree of dissociation of a 0.1 M weak acid with Ka = 10⁻⁵ is

Accepted Answer

A

Question 10

A buffer contains 0.1 M acetic acid (pKa = 4.74) and 0.1 M sodium acetate. Its pH is

Accepted Answer

A

Question 11

To make a pH 5.74 buffer from acetic acid (pKa = 4.74), the required [salt]/[acid] ratio is

Accepted Answer

A

Question 12

An aqueous solution of CH₃COONa is

Accepted Answer

A

Question 13

The solubility of AgCl decreases when it is placed in a solution of NaCl because of

Accepted Answer

A

Question 14

The molar solubility of AgCl (Ksp = 1.8×10⁻¹⁰) in water is approximately

Accepted Answer

A

Question 15

For a sparingly soluble salt AB₂, the relation between Ksp and molar solubility s is

Accepted Answer

A

Practice — Equilibrium and Ionic Equilibrium