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TG2-EVALUATE

Total questions: 10

Worksheet time: 2mins

Name
Class
Date
1.

All are examples of a strong acids, EXCEPT

a)

Hydrochloric acid

b)

Sulfuric acid

c)

Nitric acid

d)

Acetic acid

2.

How do we get the base dissociation constant (kb)?

a)

It is the ratio of the concentration of the dissociated form of an acid to the concentration of its undissociated form.

b)

It is the ratio of the concentration of the conjugate form of an acid to the concentration of its undissociated form.

c)

It is the ratio of the concentration of the conjugate acid multiplied by the concentration of the hydroxide ion, to the concentration of the base.

d)

It is the ratio of the concentration of the conjugate base multiplied by the concentration of the hydroxide ion, to the concentration of the base.

3.

The ionization of acetic acid is an example of _____.

a)

Strong acid

b)

Weak acid

c)

Acid

d)

Base

4.

How do we get the acid dissociation constant (ka)?

a)

It is the ratio of the concentration of the dissociated form of an acid to the concentration of its undissociated form.

b)

It is the ratio of the concentration of the dissociated form of a base to the concentration of its undissociated form.

c)

It is the ratio of the concentration of the conjugate acid multiplied by the concentration of the hydroxide ion, to the concentration of the base.

d)

It is the ratio of the concentration of the dissociated form of an acid to the concentration of its undissociated form.

5.

The ksp  of Ca3(PO4)2 is   

a)

[Ca2+]3 [PO43-]2

b)

[Ca2+] [PO43-]2

c)

[Ca2+] [PO43-]

d)

[Ca] [PO43-]2

6.

Why does a buffer resists changes in pH?

a)

Because it contains both an acid to neutralize added OH- ions and a base to neutralize added H+ ions.

b)

Because it contains both an acid to neutralize added H3O+ ions and a base to neutralize added H+ ions.

c)

Because it contains an acid to neutralize added OH- ions.

d)

Because it contains a base to neutralize added H+ ions.

7.

The ksp of MgF2 is

a)

[Mg2+] [F-]2

b)

[Mg2+] [F-]

c)

[Mg3+] [F-]2

d)

[Mg] [F-]

8.

The solubility equilibrium of a saturated solution of Silver Chloride is ____________.

a)

AgCo(s)   ⇌   Ag+(aq)  +  Cl-(aq)

b)

AgCl(s)   ⇌   Ag+(aq)  +  Cl-(aq)

c)

ACl(s)   ⇌   Ag+(aq)  +  Cl-(aq)

d)

AgCl(s)   ⇌   Ag-(aq)  +  Cl-(aq)

9.

If we add acetic acid solution to sodium acetate, the equilibrium concentration of the partial dissociation of CH3COOH will shift from what direction?

a)

right to left

b)

left to right

c)

no change

d)

decrease

10.

The equilibrium will change in what direction if OH- ions will be added

a)

Left to Right

b)

Middle

c)

Right to Left

d)

Right to Middle