Acids and bases chemistry problems

1. Oct 1, 2006

busted

I am a little stuck on this question :

Solution A contains n moles of a weak acid HX. The addition of some sodium hydroxide to A neutralises one third of the HX present to produce Solution B.
In terms of the amount, n how many moles of HX are present in Solution B?
I think there are one third n moles.

It then asks to determine the ratio : ____(HX)_____
(X^-)
in solution B ..... I AM TOTALLY STUCK WHAT TO DO HERE!