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ACID-BASE PROPERTIES OF SALT 14.8

Total questions: 11

Worksheet time: 27mins

Name
Class
Date
1.

Calculate the pH of 0.12 M KNO2. Ka value of HNO2 is 4x10-4

4 lines
2.

Calculate the pH of 0.45 M NaOCl. Ka ( HOCl) = 3.5x10-8

4 lines
3.

Calculate the pH of 0.40 M NH4ClO4. Kb (NH3)= 1.8x10-5

4 lines
4.

Is NaNO3 salt acidic, basic, or neutral?

a)

Acidic

b)

Basic

c)

Neutral

5.

Is NaNO2 salt acidic, basic, or neutral?

a)

Acidic

b)

Basic

c)

Neutral

6.

Is C5H5NHClO4 salt acidic, basic, or neutral?

a)

Acidic

b)

Basic

c)

Neutral

7.

Is NH4NO2 salt acidic, basic, or neutral? Given Ka ( NH4+)= 5.6X10-10 and Kb (NO2-)=2.5x10-11

a)

Acidic

b)

Basic

c)

Neutral

8.

Is KOCl salt acidic, basic, or neutral?

a)

Acidic

b)

Basic

c)

Neutral

9.

Is NH4OCl salt acidic, basic, or neutral? Given Ka (NH4+)= 5.6x10-10 and Kb (OCl-)= 2.85x10-7

a)

Acidic

b)

Basic

c)

Neutral

10.

Is NH4C2H3O2 salt acidic, basic, or neutral? Given Ka (NH4+)= 5.6x10-10 and Kb (C2H3O2-)= 5.5x10-10

a)

Acidic

b)

Basic

c)

Neutral

11.

Determine [OH-], [H+], and the pH of 0.8 M NaF solution. Given Ka (HF)= 7.2X10-4.

4 lines