(i) The pH of a sample of tomato juice is 4.6. How is this juice likely to be in taste ? Give reason to…
(i) The pH of a sample of tomato juice is 4.6. How is this juice likely to be in taste ? Give reason to justify your answer.
(ii) How do we differentiate between a strong acid and a weak base in terms of ion-formation in aqueous solutions ?
(iii) The acid rain can make the survival of aquatic animals difficult. How ?
Solution
(i) The taste of tomato juice will be slightly sour;
The pH 4.6 indicates that tomato juice is an acid and acids are sour in taste.
(ii) Acids that give more H+ ions / H3O+ are Strong Acids
Bases that give less OH- ions are Weak Bases.
(iii) Living animals can survive within a pH range of 7.0 to 7.8. So, if the pH of river water becomes low due to acid rain (pH < 5.6), then survival of aquatic animals becomes difficult.