What is pH and what is pOH? What is the relationship between pH and pOH? Why is pH commonly used as an expression of acidity or basicity of a solution containing an acid or a base?
What is the pH of acid rain? Describe the chemical reaction that occurs between marble and/or limestone and acid rain.
What is the pH of pure water and why is it that the pH of tap water is likely to vary somewhat from the pH of pure water? Could a pH substantially higher or substantially lower than the pH of pure water indicate water pollution?
How is the strength of a weak acid or a weak base determined? Explain how the pH of the salt of a weak acid may be determined.