Interpreting the pH scale!

Increasing or decreasing the pH by 2 changes the [H+] by a factor of

• 10

• 100

• 1000

• 10000

Describe what happens to the concentration of hydrogen ions in a solution if the pH is changed from 9 to 7!

• Increase by 10

• Increase by 100

• Increase by 1000

• Increase by 10000

Describe what direction the concentration of hydrogen ions shifts in a solution if the pH is changed from 14 to 12!

• Increase

• Decrease

Describe what happens to the concentration of hydrogen ions in a solution if the pH is changed from 14 to 12!

• Increase by 10

• Increase by 100

• Decrease by 10

• Decrease by 100

Describe what direction the concentration of hydrogen ions shifts in a solution if the pH is changed from 1 to 2!

• Increase

• Decrease

Describe what happens to the concentration of hydrogen ions in a solution if the pH is changed from 1 to 2!

• Increase by 10

• Increase by 100

• Decrease by 10

• Decrease by 100

Describe what direction the concentration of hydrogen ions shifts in a solution if the pH is changed from 4 to 7!

• Increase

• Decrease

Describe what happens to the concentration of hydrogen ions in a solution if the pH is changed from 4 to 7!

• Increase by 100

• Increase by 1000

• Decrease by 100

• Decrease by 1000

What is the pH of a solution that has a hydronium ion concentration 10 times greater than a solution with a pH of 4?

• 2

• 3

• 5

• 6

What is the pH of a solution that has a hydronium ion concentration 1000 times less than a solution with a pH of 5?

• 8

• 7

• 6

• 4