Since KOH is a strong base, the solution totally ionizes into K+ and OH- when in water.

You are watching: What is the ph of koh

The reaction KOH --> K+ + OH-takes place.

Since KOH and also OH- space in a 1:1 ratio, = < OH- >, for this reason 0.033 M KOH = 0.033 M OH-

The concentration the < OH- > can then be offered to calculate the pOH the the solution.

pOH = -log< OH- > = -log(0.033) = 1.48

This relationship in between pH and also pOH deserve to then be supplied to discover the pH:

pH + pOH = 14

pH = 14 - pOH = 14 - 1.48 = 12.52.

Therefore, the pH of a 0.033 M KOH equipment would it is in 12.52.


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