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What is the limits for determination chloride by Volhard method?
Tktkalex
We can find chlorides content as sodium chloride from 500 ppm with out any difficulty.
p v rao
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∙ 12y ago
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How do you calculate the percent chloride with the volhard method?
(mass /volume)x100
Explain role of nitrobenzene in volhard method?
In order to mask Ag+ions of Silver chloride, otherwise these Ag+ ions will react with thoicynate to give silver thiocynate and thus titration reading wiill be much more and chloride content will be high. UV
What are the limits for determination of chloride by the Mohr method?
1- done only in neutral medium. 2- all the cations which give insolublld be chromate must be absent or removed before titration. 3-titration of Ag+ with Cl- is not feasible. 4- not suitable for I- and SCN-
Can chloride and bromide simultaneously determine by Mohr method?
I want to assmue the the readers of this answer have know the details theory and calculations about Mohr method if not u can refer to Any analytical text for reference. Well, Bromide and Chloride can not be determine simultaneously in a sample using Mohr method , the reason be that the indicator use for each of them is different. and there will be problem in the procedure if ones try to determine both simultaneously. To determine Chloride Ion, Ammonium or Potassium Thiocynate is used as indicator and the sample must be neutral or slightly acidic. while Eosin indicator is use for the determination of Bromide Ion and the same neutral solution is prefer for this purpose, the solution must be adjusted to neutral either by adding small amount of Nitric acid or by adding small amount of carbonate as the case maybe. But, in the determination of each of them Silver Nitrate is use for the titration of both and this is the similarity they shared and the experimental procedure is quite the same. Olajire Mojeed
What method is used to prepare potassium chloride?
Crystallisation from solution, flotation, or electrostatic separation from suitable minerals.
How do you calculate the percent chloride with the volhard method?
(mass /volume)x100
Why mohr method is better than volhard method?
because mohar method gives the accurate result
Explain role of nitrobenzene in volhard method?
In order to mask Ag+ions of Silver chloride, otherwise these Ag+ ions will react with thoicynate to give silver thiocynate and thus titration reading wiill be much more and chloride content will be high. UV
What has the author Edward Richard Werm written?
Edward Richard Werm has written: 'Manganous oxalate as a primary standard and a study of the Volhard method for the determination of manganese' -- subject(s): Manganese, Manganous oxalate, Volumetric analysis
What are the limits for determination of chloride by the Mohr method?
1- done only in neutral medium. 2- all the cations which give insolublld be chromate must be absent or removed before titration. 3-titration of Ag+ with Cl- is not feasible. 4- not suitable for I- and SCN-
Why is back titration required in the volhard method?
This method uses a back titration with potassium thiocyanate to determine the concentration of chloride ions in a solution.Before the titration an excess volume of a standardized silver nitrate solution is added to the solution containing chloride ions, forming a precipitate of silver chloride (AgCl). The term 'excess' is used as the moles of silver nitrate added are known to exceed the moles of sodium chloride present in the sample so that all the chloride ions present will react.Ag+ + Cl- AgCl(s) (Ksp = 1.70 × 10−10)Excess WhiteExcess of Ag+ is back titrated with SCN-.
What is Nelson method?
its a method for determination of reducing sugars
What is the standard reference method for protein determination?
Egg
Why nitric acid is used in volhard method?
The titration must be done in acidic medium to prevent the precipitate of Iron(III) as hydrated oxide (iron hydroxide). Iron (III) is an indicator.
Why is an acidic titration medium a requirement of the vol hard?
volhard method uses Fe indicator. in the basic solution, Fe ion can precipitate forming Fe(OH)3 ...ete..
Why is electrometric method of pH determination more accurate than colorometric method?
The electrometric method of pH determination provides a single value dependent on the concentration of hydrogen ions in the aqueous solution being tested. The colorimetric method of pH determination uses acid-base indicators to provide a range of values for a solution's pH, and is therefore less accurate than the electrometric method.
What has the author Elias Elvove written?
Elias Elvove has written: 'The fixing power of alkaloids on volatile acids and its application to the estimation of alkaloids with the aid of phenolphthalein or by the Volhard method' -- subject(s): Alkaloids
