Water is necessary to create the solutions in titrations. Additionally, if you add water to a solution, you change the concentration of the solution.

Does the amount of water matter in titration?

When you do a titration, you are titrating to an endpoint. You can use water to rinse the side of the flask, so all the reagents are in the reaction flask. So the presence of water should not affect the endpoint.

Is distilled water used in titration?

with distilled water so that all of the titrant gets into the reaction mixture. You can use a pipette to do this. Addition of small to moderate amounts of distilled water will not change the results of your titration. once or twice with distilled water and then once or twice with the solution to be used.