Question

Classify aqueous solutions of the following substances according to their pH into three groups : 7, more than 7, less than 7.
Common salt, sodium acetate, hydrochloric acid, carbon dioxide, potassium bromide, calcium hydoxide, ammonium chloride, vinegar, sodium carbonate, ammonia.

Answer 1

1. Common Salt: pH = 7
2. Sodium acetate: pH > 7
3. Hydrochloric acid: pH < 7
4. Carbon Dioxide: pH < 7
5. Potassium Bromide: pH = 7
6. Calcium Hydroxide: pH > 7
7. Ammonium Chloride: pH < 7
8. Vinegar: pH < 7
9. Sodium carbonate: pH > 7
10. Ammonia: pH > 7