pH pOH Calculations

The pH of a solution is 8.43. What is the [H₃O⁺]concentration?

• 3.7 x 10 ^-9

• 1.0 x 10^-8.43

• 2.7 x 10^-6

• 1.0 x 10^-14

If the [H₃O⁺] of a solution is 1 x 10^-3 M, the pH is

• 11

• -3

• 3

• 1

If the pH of a solution is 8 the [H₃O⁺] is

• 1.0 x 10⁶ M

• 8.0 x 10¹ M

• 1.0 x 10⁸ M

• 1.0 x 10^-8 M

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 a solution has a pOH of 3.7 the [OH-] of the solution is

• 5.0 x 10^-11

• 2.0 x 10^-4

• 10.3

• 14

A 1.0 x 10^-4 M solution of HNO₃ has a [H⁺] concentration of: (Notice HNO₃ has one H⁺.)

• 1.0 x 10^-14

• log 1.0 x 10^-4

• 1.0 x 10^-10

• 1.0 x 10^-4

A solution with a pH of 5 has __________________ hydronium ions than a neutral solution with a pH of 7.

• 2 times less

• 2 times more

• 100 times more

• 100 times less