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Why is it that mohr's method of titration for the determination of halide must be performed in neutral?
When pH is lower than 7, chromic ion gets protonated and chromic acid is predominant in the solution.
Consequently, if the pH is above 7, chromate ion concentration is too low to form precipitate with silver ions at the end point.
If the pH is above 10, brownish silver hydroxide is formed masking the end point.
hence a neutral medium must be maintained
What else can I help you with?
What is the purpose of Volhard titration?
The purpose of Volhard titration is to determine the concentration of halide ions (such as chloride, bromide, or iodide) in a solution by titrating with a standardized silver nitrate solution. The endpoint of the titration is indicated by the formation of a colored precipitate of silver halide.
Why silver nitrate is used in argentometric titration?
Silver nitrate is used in argentometric titrations because it forms insoluble silver chloride, silver bromide, or silver iodide precipitates with halide ions present in the solution. The endpoint of the titration is reached when all the halide ions have reacted with silver ions, forming a visible precipitate. This allows for precise determination of the halide ion concentration in the sample.
What is a volhard method?
It is an indirect titration procedure for the determination of anions that precipitate with silver like CL-, Br-, I-, SCN-, and it is preferred in acid (HNO3) solution (because it prevents the harmful effects seen in other methods in which oxalate, arsenate and carbonate are used. Because these ions form silver salts with poor solubility, but in acidic mediums these salts are not formed). A measured excess of AgNO3 is added to precipitate the anion, and the excess of Ag+ is determined by back titration with standard potassium thiocyanate solution.Dr. Sami
Why is silver nitrate added to halide salts?
Silver nitrate is added to halide salts to test for the presence of halide ions. When silver nitrate is added, a precipitation reaction occurs where silver halide compounds are formed. The color of the precipitate that forms can help identify the type of halide ion present in the salt.
What is the third halide?
halide is a formed small group of mineral.
What is the purpose of Volhard titration?
The purpose of Volhard titration is to determine the concentration of halide ions (such as chloride, bromide, or iodide) in a solution by titrating with a standardized silver nitrate solution. The endpoint of the titration is indicated by the formation of a colored precipitate of silver halide.
Why silver nitrate is used in argentometric titration?
Silver nitrate is used in argentometric titrations because it forms insoluble silver chloride, silver bromide, or silver iodide precipitates with halide ions present in the solution. The endpoint of the titration is reached when all the halide ions have reacted with silver ions, forming a visible precipitate. This allows for precise determination of the halide ion concentration in the sample.
What is a volhard method?
It is an indirect titration procedure for the determination of anions that precipitate with silver like CL-, Br-, I-, SCN-, and it is preferred in acid (HNO3) solution (because it prevents the harmful effects seen in other methods in which oxalate, arsenate and carbonate are used. Because these ions form silver salts with poor solubility, but in acidic mediums these salts are not formed). A measured excess of AgNO3 is added to precipitate the anion, and the excess of Ag+ is determined by back titration with standard potassium thiocyanate solution.Dr. Sami
How many electrons does a neutral fluoride atom contain?
Fluorine is the name of the element and has 9 electrons. Fluoride is the name of the halide ion, carries a 1- charge and has 10 electrons.
Is iodine a halide?
Yes, iodine is a halogen element and therefore classified as a halide.
Can A 70 watt metal halide bulb be replaced with A 150 watt halide bulb?
No. A 70 Watt metal halide bulb can not be replaced with a 150 Watt halide bulb.
Is halide atom larger than the halide ion?
Yes
Will a hps luminaire run a metal halide lamp?
Yes the ballast and starter are the same you can run halide in hps, but not hps in halide.
Why is silver nitrate added to halide salts?
Silver nitrate is added to halide salts to test for the presence of halide ions. When silver nitrate is added, a precipitation reaction occurs where silver halide compounds are formed. The color of the precipitate that forms can help identify the type of halide ion present in the salt.
What is a metal halide compound?
Common table salt NaCl is a metal halide.
When was Halide Edip Adıvar born?
Halide Edip Adıvar was born in 1884.
When was Halide Nusret Zorlutuna born?
Halide Nusret Zorlutuna was born in 1901.
