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A back titration is similar to a direct titration, but a bit more difficult. When an end point is not easily identified due to no colour change, an excess volume of a reactant of KNOWN CONCENTRATION is added to the reactant of unknown concentration. Then the resulting mixture is titrated again (or titrated back) to find the volume of the unreacted reactant, which will tell us the amount that DID react with the solution of unknown concentration. You need to take into account the amount of excess reactant originally added. The relevant calculations can then be taken out.
Hence there are three reactants namely A,B,C. Such that it is to find the purity of C.
This titration is possible only if A and B can react with each other and A and C can react with each other but the product of A and C do not react with B.
What else can I help you with?
What is a back titration?
A back titration is a technique used in analytical chemistry to determine the concentration of an analyte by reacting it with an excess of a known reagent, then back-titrating the remaining excess reagent. This method is useful when the analyte reacts slowly or incompletely with the titrant in a direct titration.
When to use back-titration instead of direct titration?
Back-titration is useful when the analyte reacts slowly or not at all with the indicator used in direct titration. It is also used when the endpoint of the direct titration is not clearly visible. Additionally, back-titration is employed when the analyte is present in very low concentrations and requires a larger amount of titrant for direct titration.
Why back titration is used in complexometric titration?
Back titration is used in complexometric titration when the analyte reacts slowly with the titrant or when a direct titration is not feasible due to interference from other substances. By adding an excess of a known reagent to react with the analyte, followed by titration with another reagent to determine the excess, the concentration of the analyte can be accurately calculated.
What are the two indirect method of titration?
The two indirect methods of titration are back titration and reverse titration. In back titration, an excess of a reagent is added to react with the analyte, and then the unreacted excess is titrated to determine the amount that reacted with the analyte. In reverse titration, a standard solution is first added to a known amount of analyte to react completely, and then the excess standard solution is titrated back to determine the amount that reacted with the analyte.
What are the four cases where back titration is used instead of direct titration?
Back titration is used when the analyte reacts slowly with the titrant, when the analyte is volatile or unstable, when the end point of the direct titration is not well-defined, and when there is a large excess of the titrant that interferes with the equivalence point determination.
What is Back titration?
A back titration is a form of titraiton in which an excess of standard reagent is added and then the reverse of the titration is carried out.
When should back titration used instead of back titration?
when we do not know nothing about the other titrant.
What is a back titration?
A back titration is a technique used in analytical chemistry to determine the concentration of an analyte by reacting it with an excess of a known reagent, then back-titrating the remaining excess reagent. This method is useful when the analyte reacts slowly or incompletely with the titrant in a direct titration.
When to use back-titration instead of direct titration?
Back-titration is useful when the analyte reacts slowly or not at all with the indicator used in direct titration. It is also used when the endpoint of the direct titration is not clearly visible. Additionally, back-titration is employed when the analyte is present in very low concentrations and requires a larger amount of titrant for direct titration.
Why back titration is used in complexometric titration?
Back titration is used in complexometric titration when the analyte reacts slowly with the titrant or when a direct titration is not feasible due to interference from other substances. By adding an excess of a known reagent to react with the analyte, followed by titration with another reagent to determine the excess, the concentration of the analyte can be accurately calculated.
What are the two indirect method of titration?
The two indirect methods of titration are back titration and reverse titration. In back titration, an excess of a reagent is added to react with the analyte, and then the unreacted excess is titrated to determine the amount that reacted with the analyte. In reverse titration, a standard solution is first added to a known amount of analyte to react completely, and then the excess standard solution is titrated back to determine the amount that reacted with the analyte.
What is the chemical process for back titration?
In back titration, a known excess of a reagent is added to react with the analyte. After the reaction is complete, the amount of excess reagent is determined by titration with another reagent. The difference between the initial amount of excess reagent and the amount required in the back titration is used to determine the amount of analyte present.
What are the four cases where back titration is used instead of direct titration?
Back titration is used when the analyte reacts slowly with the titrant, when the analyte is volatile or unstable, when the end point of the direct titration is not well-defined, and when there is a large excess of the titrant that interferes with the equivalence point determination.
When should back titration be used instead of direct titration?
Back titration is often used when the analyte reacts slowly with the titrant or when interfering substances are present in the sample that can interfere with the direct titration process. Additionally, back titration can be more accurate when dealing with weak acids or bases where the endpoint may not be easily detected.
Does anyone know what back titration really is?
no lol
Is an alternative pH indicator practical for the back titration?
No.
What difference between titration and back titration?
In fact, a back titration is carried out as in a very similar method to an ordinary titration. the only difference is in the context. Consider an unknown acid solution. Then a known amount of excess alkali was added to the solution and made them react. Then the process of finding the amount left from the alkali is known as the back titration.
