Question

Solution E has a pH of 13, solution F has a pH of 6 and solution G has a pH of 2.

(a) Which solution is a strong acid?

Answer 1

The pH of a solution:

1. The pH of a solution is the negative logarithm to the base 10 of the hydrogen ion concentration expressed in moles per litre.
2. The number 7 on the pH scale represents the neutrality of the solution.
3. The numbers less than 7 represent the increase in acidic properties of a solution.
4. The numbers greater than 7 represent the increase in basic properties of a solution.

(a) Since the pH of solution G is 2, it is a strong acid.