What is the ph of a solution with a hydroxyl ion (oh-) concentration of 10-10 m? what is the ph of a solution with a hydroxyl ion (oh-) concentration of 10-10 m? ph 10 ph 12 ph 4 ph 2?

PH is the potential of hydrogen.

pH = - log₁₀ (H+)

while, pOH = - log₁₀ (OH-)

But; pH + pOH = 14

Therefore; for a solution with a concentration of (OH-) of 10^-10

The pOH = - log (10^-10)

= 10

Therefore pH = 14-10

= 4

According to this formula:

pH = - log [H]

And, pOH = - log [OH] >>> (1)

Where, pH + pOH = 14 >>> (2)

∵ the hydroxide ion concentration = (OH-) = 10 ^ - 10 M

from (1) and (2) and by substitution:

∴ pOH = - log [10^-10] = 10

∴ pH = 14 - 10 = 4