What is the difference between a strong acid and a weak acid? Give one example of each.
What is meant by the ionic product for water, Kw? Define pH and hence calculate the pH of a solution of
a) 0.01 M hydrochloric acid
b) 0.1 M sodium hydroxide
c) 0.2 M sulphuric acid
d) 0.1 M butanoic acid, given that Ka = 1.51 x 10-5
Explain clearly the difference between a strong acid and a weak acid. Give one example of each.
OTA: Strong Acid: A strong acid dissociates completely in water. The example is hydrochloric acid. No HCl is left in solution. Only the H+ and Cl- are present in solution.
HCl (aq) -> H+ (aq) + Cl- (aq)
Weak Acid: A weak acid only partially dissociates in water. An example is Acetic Acid (CH3-COOH). Some CH3-COOH will remain in solution.
CH3-COOH (aq) -> CH3-COO- (aq) + H+ (aq)
What is meant by the ionic product for water, Kw ?
H2O dissociates into H+ and OH-. We ...
This solution demonstrates how to identify strong and weak acids and define pH using examples and chemical equations. 400 words.
Explain in molecular terms strong acid base and week acid base.
[about 100 words] Explain in molecular terms the difference between a
strong acid and a weak acid, and between a strong base and a weak base.
[about 100 words] Explain the physical properties of a strong acid and a