Question

What is the concentration of OH- of a solution with an H3O+ concentration equal to 6.31 E-7 M?

Answer 1

[OH⁻] = 0.158 x 10 ⁻⁷ M is the concentration of OH- of a solution with an H3O⁺ concentration equal to 6.31  x 10 ⁻⁷ M.

What is pH scale ?

The letters pH stand for the power of the hydrogen ion. The pH of a solution is the negative logarithm of the hydrogen-ion concentration.

pH = - [log H⁺]

$\rm [H^{+}] [OH^{-}] = 1 \times 10^{-14}$

$\rm[OH^{-}] = \dfrac{1 \times 10^{-14} }{ [H^{+}] }$

$\rm[OH^{-}] = \dfrac{1 \times 10^{-14} }{ 6.31 \times 10^{-7} }$

[OH⁻] = 0.158 x 10 ⁻⁷ M

Therefore [OH⁻] = 0.158 x 10 ⁻⁷ M is the concentration of OH- of a solution with an H3O+ concentration equal to 6.31  x 10 ⁻⁷ M.

To know more about pH scale

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