Exploring the pH Scale and Its Functionality

What does the pH scale measure?

• Temperature of a solution

• Amount of hydrogen ions in a solution

• Concentration of hydroxide ions

• Color intensity of a solution

What is the pH value of a neutral solution like water?

• pH 0

• pH 5

• pH 10

• pH 7

Which substance has a pH close to 2?

• Ocean water

• Lemon juice

• Ammonia

• Drano

What happens to the acidity as the pH number decreases from 7 to 0?

• Acidity remains constant

• Acidity increases

• Acidity fluctuates unpredictably

• Acidity decreases

What is the pH of ocean water?

• pH 6

• pH 7

• pH 8

• pH 5

Which of the following is a strong base with a pH of 14?

• Water

• Lemon juice

• Drano

• Ocean water

What is the pH of ammonia, commonly used as a cleaning agent?

• pH 3

• pH 11

• pH 5

• pH 8

How much more acidic is a solution with a pH of 3 compared to a pH of 6?

• 100 times more acidic

• 10 times more acidic

• 1000 times more acidic

• Same acidity

If a solution moves from a pH of 9 to a pH of 11, how does the concentration of hydroxide ions change?

• Remains the same

• Increases 100 times

• Increases 10 times

• Decreases 10 times

Which of the following is true about the pH scale?

• It is linear

• It measures only base strength

• It is exponential

• It does not apply to aqueous solutions