Why is it not necessary to dry the Erlenmeyer flask?

If you are putting the ascorbic acid solution into a conical flask to do an experiment with it, then it definitely needs to be dry, since the water in the flask will change the volume slightly, and this will change the concentration.

Why rinsing the walls of the Erlenmeyer flask with distilled water is done does it affect the concentration of the solution in the flask?

This is done by rinsing down the sides of the flask with water. In this way we avoid adding more titrant than actually necessary to reach the end-point and hence avoid getting a falsely-high volume reading. In this situation the analyte concentration would appear to be more concentrated than it really is.

Why do you rinse the inside of the flask with distilled water?

When doing titrations with aqueous solutions, only distilled water is used to rinse the conical flask so not to leave any residual chemicals in the…

Is it important to make sure that the Erlenmeyer flask is completely dry before adding the acid?

Scout Titration Since you are concerned with the number of moles in the volume of analyte dispensed from the pipet, the flask does not need to be completely dry before adding the analyte. Add titrant from the buret to the flask while stirring magnetically or swirling the flask with your hand.

Why doesnt distilled water affect titration?

Because if you dilute, the concentration of the acid will decrease and we cannot determine the actual Concentration of the acid. In the same way if we take 20 ml of NaOH,of unknown Concentration, the amount of (ie Weight of) NaOH present in the conical flask will not change on dilution.

Why is rinsing of the burettes both with distilled water and the base and acid solutions a critical step in titration?

Due to the fact, that all burettes are made of glass, it can absorb and remain water on the surface, because of the polarity of the glass and intermolecular forces. Thus, you have to rinse the burette with a solution which must be filled in it, because distilled water change the concentration of the initial solution.

Why do you need to rinse the inner wall of conical flask with distilled water half way through an acid base titration?

Once you’ve got your acid of unknown concentration in the conical flask, it’s time to set up the burette with your alkali of known concentration. As with the pipette, the burette should be rinsed with distilled water followed by the solution it is to be filled with to avoid contamination issues.

Why adding distilled water during titration does not affect the result?

When you add water to the analyte, you dilute a solution of unknown molarity. This dilution ultimately does not affect the experimental results. The concentration of the analyte is still unknown.

Why titration flask should not be rinsed?

No, it is not right. Assuming the conical flask is the vessel in which the reaction takes place, it must be clean. If it is rinsed with distilled water, that’s fine. If it is rinsed with the solution under test that’s not fine – that will affect the number of molecules of reactant in the flask.

Does it matter if you add water to the titration flask?

Adding water to a titrant or analyte will change the concentration of that solution. When you add water to a solution, the number of moles of the solvent stays the same while the volume increases. Therefore, the molarity decreases; the solution is diluted.

Why did you rinse the Erlenmeyer with distilled water?

The erlenmeyer can be rinsed only with distilled water, since the volume of acid solution used for the calculation is constant. Why did you rinse the Buret with distilled water? Thus, you have to rinse the burette with a solution which must be filled in it, because distilled water change the concentration of the initial solution.

How can I titrate an acid solution using an Erlenmeyer?

Considering a direct titration: You will probably use a volumetric pipette to pass the acid solution to the erlenmeyer used on the titration, so the volume of acid is known (the exactly volume of the pipette). Anything distilled water you add on this erlenmeyer will change its volume,…

Why do we rinse the Buret with distilled water before titration?

Water in the glass of the buret can cause variations in the concentration of the base being used, reason why we rinse it with the base, so we have a good precision titration. The erlenmeyer can be rinsed only with distilled water, since the volume of acid solution used for the calculation is constant.

Why wash sides of flask with DI water during titration?

Why is it ok to wash the sides of a flask with DI water during titration even though you are diluting the acid present? Because the mols of acid don’t change with the amount of solvent present. Titration relies on merely knowing the number of mols of acid.