PH Calculation

If the [H₃O⁺] of a solution is 6.8 x 10^-8 M, the pH is

• 7.17

• 3.2 x 10^-5

• 7.2

• 7.62

If the [H₃O⁺] of a solution is 9.3 x 10^-3 M, the pOH of the solution will be

• 2.03

• 1.02

• 11.97

• 12.98

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

• 3.08

• 10.92

• 9.88

• 11.23

What is the [OH-] if the [H+] is 1.0 x 10^-3M?

• 1.0 x 10^-3 M

• 1.0 x 10^-14 M

• 6.02 x 10^-23 M

• 1.0 x 10^-11 M

If the [OH^-] of a solution is 2.7 x 10^-4 M, the pOH of the solution is

• 10.44

• 1.00

• 3.57

• -4.43

If a solution has a very high pH, the hydroxide concentration is _______.

• very high

• very low

• zero

If a solution has a very low pH, the hydroxide concentration is _______.

• very high

• very low

• zero

If a solution has a very high hydrogen ion concentration, the hydroxide concentration is _______.

• very high

• very low

• zero

What is the [H+] if the pH is 4.0?

• 1.0 x 10^-10 M

• 1.0 x 10^-14 M

• 1.0 x 10^-4 M

• 1.0 x 10^-7 M

A solution of KOH is 2.5 x 10^-5 M. What is the [H⁺] concentration? (Hint: Find pOH, then pH, then [H⁺].)

• 4.60

• 9.40

• 3.98 x 10^-10

• 1.0 x 10^-4.60