Annie Termaat and Christopher Talbot Solutions for Chapter: What are the Impacts of Chemical Industry?, Exercise 13: ACTIVITY: pH

Identify whether a solution is acidic, alkaline or neutral, if its pH is: $9, 4, 7, 1, 10, 2$.

Compare two solutions with pH $8$ and pH $10$. In the more alkaline solution, by what factor is the number of hydrogen ions decreased?

Imagine ${10}^{20}$ molecules of ethanoic acid and hydrochloric acids each were dissolved in $0.1 {\mathrm{dm}}^3$ water. Deduce which has most hydrogen ion, and why?

Imagine ${10}^{20}$ molecules of sulphuric acid and citric acids each were dissolved in $0.1 {\mathrm{dm}}^3$ water. Deduce which has most hydrogen ion, and why?

For a pair of ethanoic acid and hydrochloric acid solutions, sulphuric acid and citric acid, identify which is the better conductor of electricity?

Compare the expressions: A concentrated solution of an acid and a solution of a strong acid

Sketch a diagram representing the particles in a concentrated solution and a dilute solution.

Explain the difference in the meaning of concentrated solution and a dilute solution with an example.