Question

Why is the conical flask washed with distilled water instead of the solution to fill it?

Answer 1

The conical flask is washed with distilled water instead of the solution to fill it in order to remove any impurities or contaminants that could potentially affect the accuracy of the experiment or alter the composition of the solution being prepared. Washing the flask with distilled water helps to ensure that the solution being prepared is not contaminated with any substances from previous experiments or washings, and also helps to prevent any unwanted reactions that could occur if the flask was not properly cleaned. Additionally, using distilled water ensures that no unwanted ions or molecules are introduced into the solution, which could potentially alter the results of the experiment.