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The amount of indicator used in a titration can impact the accuracy of the endpoint determination. Using too much indicator can mask subtle color changes, leading to difficulty in pinpointing the endpoint. On the other hand, using too little indicator may cause the endpoint to be ambiguous or not easily detectable. It is important to carefully select the appropriate amount of indicator to ensure precise and reliable results.
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When doing a titration in chemistry why do you weigh by difference?
Weighing by difference involves weighing the sample before and after the titration to calculate the amount of substance used. This method is used to accurately determine the amount of substance added or reacted in the titration process, accounting for any losses or impurities that may have affected the final result.
Why does blank titration shows the higher value compared to sample titration in iodine value?
In blank titration, no sample is present to react with the iodine solution, leading to an apparent excess of iodine. This can result in a higher value as all the iodine being counted towards the blank. In sample titration, the sample reacts with the iodine, leading to a lower amount of iodine available to react, resulting in a lower value compared to the blank titration.
What happened if some solution splashes out during the titration of NaOH?
If some solution splashes out during the titration of NaOH, it could result in a decrease in the volume of the solution being titrated. This can lead to an inaccurate reading of the amount of titrant used and affect the accuracy of the titration results. It is important to take precautions to prevent spills and maintain a consistent volume throughout the titration process.
Is titration of thiosulfate is a direct or indirect iodine titration?
Indirect http://books.google.co.uk/books?id=wxMrnl9Hy0AC&pg=PA131&lpg=PA131&dq=iodine+indicator+in+alkaline+environment&source=web&ots=wGSsDuMEy3&sig=TasdtQD2-vRoFyq7pKt4-VeQ7wk&hl=en&sa=X&oi=book_result&resnum=8&ct=result#PPA130,M1
What would have happened if sulfuric acid was not add in spectrophotometric titration?
If sulfuric acid were not added in a spectrophotometric titration, the pH of the solution would not be acidic enough to ensure the proper ionization of the analyte. This could result in inaccurate readings or the formation of unwanted precipitates that could interfere with the analysis. Sulfuric acid also helps to stabilize the color of the indicator used in the titration.
