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This is important for the exactitude of the volumetric determination - to know exactly the volume of the titrant.
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Why is it important to obtain the end point with just one drop from the burrete?
Obtaining the endpoint with just one drop from the burette helps increase the accuracy of the titration. This minimizes the chances of overshooting the endpoint and ensures precise determination of the volume of titrant needed to reach the endpoint. It also reduces the margin of error in the titration results.
What happens when a drop remains hanging from the tip of the burette after the solution has been added to the flask?
If a drop remains hanging from the tip of the burette after the solution has been added to the flask, it could lead to inaccuracies in the volume measurement since that drop has not been delivered into the flask. To ensure accurate measurements, it is important to wait until the drop completely detaches from the tip before stopping the titration.
When approaching the endpoint for titration how can you tell that you are very close?
You can tell you are very close to the endpoint when the solution starts to change color more rapidly with each drop of titrant added, indicating that the titrant is reacting with the analyte more intensely. Another sign is when the pH of the solution changes more dramatically with each drop of titrant. It is important to add the titrant drop by drop at this stage to prevent overshooting the endpoint.
When performing titrations why should you constantly stir the contents?
During a titration, reactant from the burette are added drop wise. It may not reach the bottom, which might result in an incorrect endpoint. The flask is always stirred to mix the reactants in the flask evenly.
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It is a "quit claim deed" that you have to obtain and you have to refinance to drop the other name. It is a "quit claim deed" that you have to obtain and you have to refinance to drop the other name. It is a "quit claim deed" that you have to obtain and you have to refinance to drop the other name. It is a "quit claim deed" that you have to obtain and you have to refinance to drop the other name.
Why need to add reagent drop by drop during titration?
Adding reagent drop by drop during titration allows for precise control of the reaction and helps prevent over-titration. This ensures that the endpoint is accurately determined and the titration results are as precise and reliable as possible.
What will happen to the molarity of NaOH If a drop of NaOH falls out of the flask during the titration?
You have to realise that a drop from the burette for instance is insignificant, if you are dealing with at least 10ml solution which you usually deal with on a titration. If you don't want to regard it as insignificant, then if NaOH is in the burette, then the solution doesn't become more concentrated with NaOH because that drop escaped.
Suppose it takes 2.00 ml to reach the endpoint How much is the error if the experimenter goes one drop 0.05 past the endpoint?
Error is 0.05/2.00 expressed as a percentage = 0.05/2.00 x 100 = plus or minus 2.5%
How can you tell if the burrette contains the acid or base?
You can determine if a burette contains acid or base by using a pH indicator. Simply add a few drops of the indicator to the solution in the burette and observe the color change. Red or pink indicates an acid, while blue or green indicates a base.
Why it is preferred to take acid in burette during acid base titration?
Well, isn't that just a happy little question! Using the acid in the burette during an acid-base titration allows for better control of the amount of acid being added to the base solution. This helps us achieve more accurate and precise results, ensuring our titration is successful and our painting... I mean experiment, turns out just right. Just remember, there are no mistakes in science, only happy accidents!
Why do you use external indicator in diazotization titration?
external indicator is required in diazotization as to observe the end point of the reaction. internal indicators cannot give the endpoint because they may form complexes which may cause hindrance. for example, in the assay of sulfa drugs, iodine-starch paste is used as external indicator, because if we add iodine paste in the conical flask it will react with the reactants and give the blue-black coloration in the beginning of the actions, which will not tell the end point of the reaction. instead, the iodine-starch paste is applied in a paper, and the compound from the burette is added in small quantities into the sulfa drug solution, and after every few milliliters a drop of solution from the conical flask is dropped on the iodine-starch paste, when there is sudden change in colour, the addition from the burette is stopped. and observations are made.
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