How are neutralization equivalent lab procedures (i.e TITRATION of an aspirin an
ID: 533511 • Letter: H
Question
How are neutralization equivalent lab procedures (i.e TITRATION of an aspirin and a FTIR test) concepts used in the real world? What function/purpose can they serve in manufacturing or testing? I would just like to understand why these types of lab testing are important/useful to everyday business.Please write clearly. Thanks so much! How are neutralization equivalent lab procedures (i.e TITRATION of an aspirin and a FTIR test) concepts used in the real world? What function/purpose can they serve in manufacturing or testing? I would just like to understand why these types of lab testing are important/useful to everyday business.
Please write clearly. Thanks so much!
Please write clearly. Thanks so much!
Explanation / Answer
The question is a bit unclear to me. Do you want to know why titrations and FTIR experiments are important or you specifically want to know why titration of aspirin is important? I will answer based on the first question.
Titration experiments provide a simple and inexpensive way to find out the assay (percent content) of an analyte in a sample. A number of chemical processes utilize titration experiments to determine the percent content of an analyte. Suppose one I working in a metallurgical industry and one wants to find out the percent content in a sample of say, iron ore. One can carry out appropriate dissolution of the sample in suitable solvents to extract the iron from the ore as soluble iron salts. The iron can then be estimated quantitatively by titration with a standard sample of potassium dichromate of potassium permanganate.
Another example may be the determination of moisture in a particular sample. A very specific titration method, known as the Karl-Fischer titration is used to find out the percent moisture in a sample.
A third example (though somewhat less common) is the iodometric titration to determine the number of vinyl groups in a compound. The iodine is discoloured by reaction with vinylic double bonds and thiosulfate is used to find out the amount of iodine reacted with the double bonds.
FTIR provides one of the first approaches to determining the chemical groups (functional groups) present in a molecule. Almost all organic groups absorb in the UV-Vis region and these absorptions give characteristic wavelengths (or wavenumbers) in the IR spectrum. An unknown sample is dissolved in a suitable solvent and an IR is run to determine the nature of the functional groups. A comparison with known IR values gives the identity of the functional group present.
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