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What is the purpose of adding sulfuric acid to iron samples before titration?
Wiki User
∙ 12y ago
Depends on the method used. In general, it helps to dissolve all the sample.
But in case of using manganometry in the determination, then the acid is needed to ensure low pH, because the reaction
Fe2+ + MnO4- = Fe3+ + Mn2+
proceeds only in high pH. If the pH was neutral or basic, solid MnO2 would be created, which is not favorable (we need to know prpreciselyow many mno4- oxidates one fe2+).
Wiki User
∙ 12y ago
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Why there is a need to warm the solution of sulfuric acid and oxalic acid during redox titration?
Adding heat to a reaction usually speeds up a reaction.
What is the effect of adding the sulfuric acid before KI in iodometric titration?
Sulphuric acid helps in maintaining pH around 3-4 which further helps in liberation of iodine upon adding KI solution.
What is the purpose of adding dextrin in titration?
In a precipitate titration, dextrin is added to prevent the precipitate from coagulating during titration. It also makes the color change more visible, since some analytes may be difficult to see a color change during the titration. I hope this helps! This is straight out of my Analytical Lab manual.
Why do you not test sulfates with sulfuric acid?
I think it's because sulfate is the salt of sulfuric acid. They both have the same ions, therefore have no reaction. Its like adding sulfuric acid to sulfuric acid.
Why high concentrated of sulfuric acid not used in titration?
Titrations require a high degree of precision. Using a high concentration of any acid or base makes it easy to overshoot or undershoot the target amount. Using low concentrations allows you more fine control over the amount of reactants you are adding.
Why there is a need to warm the solution of sulfuric acid and oxalic acid during redox titration?
Adding heat to a reaction usually speeds up a reaction.
What is the effect of adding the sulfuric acid before KI in iodometric titration?
Sulphuric acid helps in maintaining pH around 3-4 which further helps in liberation of iodine upon adding KI solution.
What is the purpose of adding blue tracking dye to the DNA samples?
yes u dummy
What is the purpose of adding dextrin in titration?
In a precipitate titration, dextrin is added to prevent the precipitate from coagulating during titration. It also makes the color change more visible, since some analytes may be difficult to see a color change during the titration. I hope this helps! This is straight out of my Analytical Lab manual.
What is the purpose of adding sulfuric acid solution to the sample of milk of magnesia?
ensure complete neutralization of all magnesium hydroxde with the formatino of the soluble magnesium sulafte -DTSON
Why do you not test sulfates with sulfuric acid?
I think it's because sulfate is the salt of sulfuric acid. They both have the same ions, therefore have no reaction. Its like adding sulfuric acid to sulfuric acid.
What will happen if sulfuric acid is added with water?
Adding sulfuric acid to water is the recommended way of working to avoid accidents.
What is the purpose of adding blue and acirc and 128 and 156tracking and acirc and 128 and 157 dye to the DNA samples?
It makes it easier to load the samples and visually track the migration of DNA through the gel. ... Explain how an agarose gel can separate DNA fragments of different lengths.
Why high concentrated of sulfuric acid not used in titration?
Titrations require a high degree of precision. Using a high concentration of any acid or base makes it easy to overshoot or undershoot the target amount. Using low concentrations allows you more fine control over the amount of reactants you are adding.
Why do you have to heat up the solution of oxalic acid after adding sulphuric acid for the titration with permanganate?
To act as a catalyst
What is the trial titration?
A trial titration is carried out before the actual titrations and is not recorded. It is carried out by adding increments of several milliliters from the reactant in burette. It helps to give a rough estimation to the end point.
What is the purpose of adding sugar to cookie dough?
The purpose is to make it sweet.
