You need to know the Kw for water at the temperature of the wine.
There is a table of Kw versus temperature here
http://www.chemguide.co.uk/physical/acidbaseeqia/kw.html
then use
[H+][OH-]=Kw
to find [OH-]
The [H3O+] in a wine bottle is 3.1 10–2 M. What is the [–OH] in this wine?
1 answer