Does a solution with the concentration of [OH-] = 4.3 x #10^-5# M have a pH of 5?

1 Answer
Truong-Son N.
May 16, 2017

No... Not under any approximation.

As-written, the #"pOH"# cannot be #5# either...

#"pOH" = -log["OH"^(-)] = 4.37 ne 5#

And furthermore, since #"pH" + "pOH" = 14#,

#"pH" = 14 - 4.37 = ??? ne 5#

So... no. Definitely not #5#.

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