What is the pH of a #1.15 * 10^-12# M solution of #KOH#?
This is such a dilute solution of KOH that its concentration is negligible. As such I would expect the pH to be very close to 7.
You need to consider the auto - ionisation of water:
This means that
You might, therefore, conclude that in this solution the total
You have disturbed a system at equilibrium by adding extra
You could then set up an ICE table to find out the equilibrium concentration of the
This gives a
Take 1 litre of 1.15 M NaOH and make it up to
That is the sort of dilution we are talking about. It should be dilute enough for a pH of 7.