pH calculations

The pH scale is a range from:

• 1-7
• 0-14
• 1-5
• 1-20

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

• Acid
• Alkaline
• Base
• Buffer

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

• Base
• Acid
• Buffer
• Water

Find the pH of a solution with [OH-] = 8.41 x 10^-4.

• 3.08

• 10.92

• 9.88

• 11.23

If a solution has a [H⁺] of 9.3x10^-11, what is the pH?

• 10.0

• 4.0

• 3.5

• 8.2

If the pH of a solution is 5.6 the pOH is

• 6.5
• 12.4
• 8.4
• 5.6

If we dissolve 20.0 grams of HCl in 1.2 L of water, what is the pH of that solution?

• 0.34

• 4.21

• 7.20

• 10.34

If the hydronium ion H₃O⁺ concentration is equal to the hydroxide ion OH^- concentration, the solution is a(n)

• acid

• base

• salt

• neutral solution

What is the hydronium ion concentration of 4.0 M H₂SO₄?

• 4.0 M

• 8.0 M

• 1.0 x 10^-4 M

• 2.5 x 10^-15 M

Find the pH of a solution with [OH-] = 8.41 x 10^-4.

• 3.08

• 10.92

• 9.88

• 11.23