8.4 Notes Review Strength of Acids and Bases

What is the purpose of adding chlorine compounds to swimming pool water?

• To prevent the growth of bacteria

• To increase the water temperature

• To change the color of the water

• To make the water taste better

Why must the concentration of hydronium ions in a swimming pool be controlled?

• To ensure the water is clear

• To maintain the presence of the right chlorine compounds

• To increase the water's pH level

• To reduce the water's temperature

What can be used to lower the concentration of hydronium ions in a swimming pool solution?

• Sodium chloride

• Sodium bicarbonate

• Calcium carbonate

• Potassium permanganate

How is pH used to describe the concentration of acids and bases?

• pH measures the temperature of a solution.

• pH indicates the color of a solution.

• pH measures the concentration of hydrogen ions in a solution.

• pH measures the density of a solution.

What does the pH of a solution measure?

• The concentration of hydroxide ions

• The concentration of hydronium ions

• The concentration of sodium ions

• The concentration of chloride ions

What happens to the H3O+ ion concentration as the pH value decreases?

• It decreases

• It remains the same

• It increases

• It fluctuates

If a solution has a high pH value, what can be inferred about its H3O+ ion concentration?

• It is high

• It is low

• It is neutral

• It is variable

What does a pH of 7 indicate in a solution?

• Acidic solution

• Basic solution

• Neutral solution

• Highly acidic solution

Which of the following pH values indicates an acidic solution?

• 8

• 7

• 6

• 14

What is the pH range for bases?

• Less than 7

• Equal to 7

• Greater than 7

• Between 0 and 7