Question

The pOH of a solution is 10.75. What is the concentration of OH– ions in the solution?
Use StartBracket upper O upper H superscript minus EndBracket equals 10 superscript negative p O H..
3.162 Times. 10–108 M
1.778 Times. 10–11 M
1.075 Times. 102 M
5.623 Times. 1010 M

Answer 1

Answer:

B. 1.778 x 10–11 M

Explanation:

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Answer 2

Based on the pOH of the solution, the hydroxide ion concentration, [OH-] of the solution is 1.778 × 10^-11 M

What is pOH of a solution?

The pOH of a solution is the negative logarithm to base ten of the hydroxide ions concentration of the solution.

• pOH = -log[OH-]

The pOH of the solution = 10.75

[OH-] = 10^(-pOH)

Hydroxide ion concentration, [OH-] = 10^-10.75

Hydroxide ion concentration, [OH-] = 1.778 × 10^-11 M

Therefore, the hydroxide ion concentration, [OH-] of the solution is 1.778 × 10^-11 M

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