Abstract
A volumetric flask is a piece of laboratory apparatus that is used to make solutions with very accurately known concentrations. Many references describe that a funnel should be used to transfer a solution from a beaker to the volumetric flask so as not to spill the solution. We think, however, that the solution of the beaker can be easily transferred without the funnel because the beaker has an indentation in its mouth. In this study, we consider benefit of using the funnel based on experiment of 205 students. Although most of the students do not spill the solution without the use of the funnel, more than 70 % of the students answer that the funnel is required to prevent spilling the solution.
