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Why is the conical flask only rinsed with distilled water in the titration procedure?
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.
What else can I help you with?
Why is a filter paper containing a precipitate rinsed with distilled water?
To recover the precipitate.
Should you rinse the pH meter between readings?
The electrode must be carefully rinsed.
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.
Describe a procedure to separate a mixture of sugar, black pepper and pebbles?
1)separate the sugar+pepper from the rocks by washing rocks with water and collecting all water rinsed off the rocks. 2)with the water from step 1, pour it through a filter with holes smaller than the pepper and again collect the water. 3)boil the sugar-water mixture until all water has evaporated.
Does bleach leave a residue on glass?
Yes, bleach can leave a residue on glass if not rinsed off thoroughly. It is important to rinse glassware well after cleaning with bleach to prevent any residue from forming.
Why before doing titration conical flask is not rinsed?
The conical flask is not rinsed before performing titration because doing so could dilute the solution and alter the concentration, affecting the accuracy of the titration. It is important to maintain the concentration of the solution as accurately as possible for precise results.
Why is a filter paper containing a precipitate rinsed with distilled water?
To recover the precipitate.
How would the results of a titration be affected if the burette is not rinsed with a titrant?
If the burette is not rinsed with the titrant before starting the titration, there may be leftover residue from the previous solution which could lead to contamination and affect the accuracy of the results. It could also cause inconsistent readings as there may be mixing of the two solutions resulting in erroneous titration endpoints.
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?
Rinsing the burette and pipette with distilled water helps to remove any impurities or contaminants that could affect the accuracy of the measurements. Rinsing with the solution to be measured helps to ensure that the instruments are properly calibrated and that there are no remaining residues from previous substances that could alter the results.
What is the present perfect tense of rinse?
The present perfect tense of rinse is have / has rinsed they have rinsed the washing. She has rinsed her hair.
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.
What is the past tense of rinse?
The past tense is rinsed.
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.
Explain whether the rinsing of conical flask with the standard sodium carbonate would lead to experimental error?
Rinsing a conical flask with the standard sodium carbonate solution could potentially introduce a systematic error if there was any residue or impurities left in the flask from previous experiments. This could impact the accuracy of the results if any of the residue or impurities interact with the solution being measured. It is best practice to ensure that the flask is thoroughly cleaned and rinsed with the appropriate solvent to avoid such errors.
