pH calculations Quiz

What is the pH of a solution that has a [H+] of 2.5 x 10^-5 M?

• 4.60

• 5.0

• 2.5

• 7

What is the [H+] if the pH is 4.5?

• 1.00 x 10^-9.5 M

• 1.10 x 10^-4.5 M

• 3.16 x 10^-5 M

• 6.53 x 10^-1 M

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

The pH scale ranges from:

• 1-7

• 0-14

• 7-14

• 0 to infinity

What is the pH of a solution if the [H⁺] = 7.94 x 10^-2 M?

• 12.9

• 1.10

• 7.8

• 4.9

The lower the pH, the greater the concentration of :

• OH-
• H+

A(n) _______ is a substance with a pH greater than 7.

• Base
• Acid
• Buffer
• Water

What is the only substance with a neutral pH of 7?

• Milk

• Orange Juice

• Pure Water

• Blood

Complete the sentence.
A substance that is more basic has a _____ pH than a substance that is acidic.

• lower
• higher
• the same
• none of the above

What is the pH of a 1.53 x 10^-6 M solution of HCl?

• 5.82

• 8.18

• 6.99

• 4.15