procedure (using a beaker). use a beaker with a vol about 25 % greater than that which the liquid will have at the end of the end of the titration thus a 250-ml beaker is appropriate for about 150 ml of a soln that is expected to require about 40 ml of titration soln. Use a saparate stirring rod with fire-polished ends for each soln the length of rod should be such that the rod projects only an inch or two above the top of the beaker when it rests in the beaker in rests in the beaker in the ordinary way Do not remove the rod from the soln before the completion of titration