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Why is the conical flask only rinsed with distilled water in the titration procedure?
Wiki User
∙ 13y ago
Yes. By adding water to rinse, you will be changing the concentration of the thing you are titrating, and so your calculation will be off. If you have material on the walls of the flask, just gently stir the flask and let the solution in the flask wash anything off the walls. I do not believe this is true. Once you add an amount of reactant into your flask adding more water will not change the number of moles of reactant that are present in the flask. The titrant will react in the mole ratio for that particular reaction so water doesn't play a role. You can rinse the flask and even use water to get part of a drop into your flask for a more accurate titration.
Wiki User
∙ 14y ago
Wiki User
∙ 10y agoProbably the higher chance of it spilling than an Erlenmeyer flask, which was designed for the purpose of easy swirling and mixing of liquids. Other than that, I do no know.
EDIT: This is untrue - an Erlenmeyer flask is simply another name for a conical flask.
Wiki User
∙ 13y agoConical flask is used for conducting experiments.Distilled water is free of all microorganisms and minerals,it is pure water.experiments require pure water to be conducted(usually),so distilled water is used.(common sense)
Wiki User
∙ 7y agoThe aim of the titration is to measure the total amount of solute pipetted into the conical flask. If you rinse with the solution, the flask will contain the rinsings plus the contents of the pipette.
Wiki User
∙ 13y agoBecause distilled water is free of ions and it will not affect the number of moles in the solution in the conical flask.
Wiki User
∙ 13y agoIt is important to work with very clean glassware in laboratories. Any contamination must be avoided.
Wiki User
∙ 6y agoThis is not a rule.
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Why is a filter paper containing a precipitate rinsed with distilled water?
To recover the precipitate.
Why is the filter paper rinsed with acetone after the rinsing with water?
to speed up the dryiness
How do you change cyclohexanol to chlorocyclohexane?
Eight mL of concentrated sulfuric acid has been cautiously added to 4 mL of water in 50 mL ground-glass stopper conical flask. The solution has been cooled in an ice bath until cold to the hand. Ten mL of cyclohexene has been added into the solution. The flask has been sealed with a greased ground glass stopper and it has been vigorously shaken for at 15 minutes until there was one homogeneous layer. The reaction mixture has been left for 10 minutes to increase completeness of reaction. The mixture has been poured into a 250-mL round-bottom flask, the previous conical flask has been rinsed with 125ml of water, and the rinsing has been added into the round-bottom flask. The flask has been fitted with a distillation adapter and a condenser set for distillation. The mixture has been heated to hydrolyze the intermediate and to distill the product. The distillate has been collected into a 100 mL conical flask. The distillation has been stopped once the distillate in the condenser was clear, with no oily droplets present and phase is left in the pot. The distillate has been saturate with 10 grams of sodium chloride. The mixture has been left for 15 minutes. The mixture has been transferred into a 250 mL reparatory funnel. The conical flask has been rinsed with 3 mL of diethyl ether for 3 times. All rinsing has been added to the reparatory funnel. The reparatory funnel has been shaken until two distinct layers were seen. The top layer has been transferred into a 100 mL conical flask. The ethereal extract has been dried by added anhydrous potassium carbonate until free flowing. The mixture has been gravity filtrated through fluted filter paper in to a 50 mL round bottom flask. The filtrate has been distilled and the distillate has been collect form as cyclohexanol. The distillation has been stopped when the temperature dropped. The sample and the bottle have been weighted to obtain the number of grams of cyclohexanol produced. The theoretical yield of cyclohexanol and the percent yield have been calculated.
Should you rinse the pH meter between readings?
The electrode must be carefully rinsed.
Why is there a need to wipe the sides of the pipette?
All pipettes must be rinsed between different operations.
Why is a filter paper containing a precipitate rinsed with distilled water?
To recover the precipitate.
Why the burette and the pipette are each rinsed with distilled water and finally rinsed with some of the solution that will be measured or transferred?
These are conditions necessary to avoid contamination or any other modification of the reagents.
Why the burette and pipette are each rinsed with distilled water and finally rinsed with some of the solution that will be measured or transfer?
These are conditions necessary to avoid contamination or any other modification of the reagents.
What is the present perfect tense of rinse?
The present perfect tense of rinse is "have rinsed" (for first and second person) and "has rinsed" (for third person).
Why is filter paper rinsed with distilled water in the experiment to determine the balanced equation for the reaction between iron powder and aqueous copper ii ions?
So that the aqueous solution will pass through the filter more easily.
Should grains be rinsed after cooking?
Grains such as rice do not need to be rinsed; for it will wash out its starches.
What would happen if no fixing were done?
If no heat fixing was done to a slide with a specimen on it, it would be rinsed off with the gram staining procedure. Heat fixing the specimen does kill specimen but it also locks it in place.
What is the present tense of rinsed?
The present tense of rinsed is:I/You/We/They rinse.He/She/It rinses.The present participle is rinsing.
What would happen if the test tubes used in the experiment were not rinsed with distilled water after washing them with tap water?
Tap water is not always pure and so remaining ions or chemicals may be in the water, inaccurate results may be incurred due to unknown (and thus immesurable) reactants being in the 'water'
Does sperm stay in you?
They are rinsed out by discharge when they die.
What is 44 rinsed to the nearest 10?
40
Why is the precipitated copper rinsed with water?
because it is
