Question

Determine if the following salt solutions (0.123 M) are basic, acidic or neutral.

Determine the pH of the solution, if possible. (Ammonium: Ka = 5.8 x 10-10, Sulfate: Kb = 8.3 x 10-13)

a. Sodium nitrate

b. Sodium sulfate

c. Ammonium nitrate

d. Ammonium sulfate

Answer 1

a.)

Sodium nitrate   -   Neutral

this is a salt of strong base and strong acid .this is neutral solution so pH = 7.00

b. Sodium sulfate - Neutral

this is a salt of strong base and strong acid .this is neutral solution. so pH = 7.00

c.)

Ammonium nitrate   - acidic

this is a salt of strong acid and weak base. this is acidid , pH < 7

d.)

Ammonium sulfate - acidic

this is a salt of strong acid and weak base. this is acidid , pH < 7