Question

Find out OH-concentration in pH 3.28solution

Answer 1

Answer:

1.9*10⁻¹¹ M

Explanation:

pH is defined as the negative logarithm of the concentration of hydrogen ions.

Thus,

pH = - log [H⁺]

So, pH = 3.28

Thus, 3.28 = - log [H⁺]

[H⁺] = 0.000525 M = 5.25*10⁻⁴ M

Also,

[H⁺] [OH⁻] = 10⁻¹⁴

So,

[OH⁻] = 10⁻¹⁴ / 5.25*10⁻⁴ = 1.9*10⁻¹¹ M

Answer 2

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