The pH of a solution is 7.0. What is the pOH?

1 Answer
Nathan L.
Jun 12, 2017

#"pOH" = 7.0#

Explanation:

A fundamental equation to know regarding #"pH"# is that (near #25^"o""C"#),

#"pH" + "pOH" = 14.00#

That is, near #25^"o""C"#, the sum of the #"pH"# and #"pOH"# is always #14.00#.

Therefore,

#"pOH"= 14.00 - "pH" = 14.00 - 7.0 = color(red)(7.0#

Since the #"pH"# and #"pOH"# are equal, this solution is said to be neutral; i.e. it is neither acidic nor alkaline (basic).

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