25.0 cm cubed of Barium hydroxide,Ba(OH)2 solution neautralises 35.0 cm cubed of aqueous hydrochloric acid of concentration 0.09 mol dm-3. what is the concentration of the barium hydroxide?

I like the titration equation

Normalitybase*volumebase*concentrationBase equals Normalityacid*volumeacid*concentrationacid.

Here, the normality of the base and acid is 2 and 1, respectively. Solve for the concentration of the base.