Question

the pH of the solution is 9 calculate the hydroxyl ion concentration per litre assuming complete ionization​

Answer 1

Answer:

10⁻⁵

Explanation:

pH + pOH = 14

9 + pOH = 14

pOH = 5

We know that, pOH = -log([OH⁻])

Where, [OH⁻] = hydroxyl ion concentration per liter

Hence, 5 = -log([OH⁻])

[OH⁻] =  10⁻⁵

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Answer 2

Answer:

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