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How do you prepare nesslers reagent?
To prepare Nessler's reagent, dissolve 7g of mercuric iodide and 35g of potassium iodide in distilled water, and then add 100g of potassium hydroxide pellets. Once the solution is clear, dilute it with water to make 1 liter of Nessler's reagent. This reagent is commonly used for detecting ammonia in solutions.
What is meant by ion pair reagent?
An ion pair reagent is a reagent used in analytical chemistry to facilitate the formation of ionic pairs between a charged analyte and a counterion. It involves the addition of a reagent that can associate with the analyte and form a stable ion pair, which can then be selectively extracted or separated. This technique is commonly used in chromatography and extraction methods for the analysis of charged species.
WHAT IS TEST REAGENT USED TO IDENTIFY NITRATE ION?
A common test for nitrate ion is with diphenylamine.
What is the reagent that will convert benzaldehyde to benzoate ions?
The reagent that will convert benzaldehyde to benzoate ions is a base such as hydroxide ion (OH⁻) in the presence of water. The base deprotonates the aldehyde group of benzaldehyde to form the benzoate ion.
If fat is present using biuret reagent turns what color?
Biuret reagent turns from light blue to purple in the presence of proteins or peptides, but it does not change color in the presence of fats. Fats and oils are not detected by biuret reagent.
How do you prepare nesslers reagent?
To prepare Nessler's reagent, dissolve 7g of mercuric iodide and 35g of potassium iodide in distilled water, and then add 100g of potassium hydroxide pellets. Once the solution is clear, dilute it with water to make 1 liter of Nessler's reagent. This reagent is commonly used for detecting ammonia in solutions.
What is meant by ion pair reagent?
An ion pair reagent is a reagent used in analytical chemistry to facilitate the formation of ionic pairs between a charged analyte and a counterion. It involves the addition of a reagent that can associate with the analyte and form a stable ion pair, which can then be selectively extracted or separated. This technique is commonly used in chromatography and extraction methods for the analysis of charged species.
WHAT IS TEST REAGENT USED TO IDENTIFY NITRATE ION?
A common test for nitrate ion is with diphenylamine.
What is the reagent that will convert benzaldehyde to benzoate ions?
The reagent that will convert benzaldehyde to benzoate ions is a base such as hydroxide ion (OH⁻) in the presence of water. The base deprotonates the aldehyde group of benzaldehyde to form the benzoate ion.
What is the chemical responsible for the mayer's reagent?
the mercury atom will dissociate from the chloride ion
If fat is present using biuret reagent turns what color?
Biuret reagent turns from light blue to purple in the presence of proteins or peptides, but it does not change color in the presence of fats. Fats and oils are not detected by biuret reagent.
Which ions is the limiting reagent and which is the reagent in excess when barium sulphate is made?
When barium sulfate is made, the limiting reagent is the one that is completely consumed in the reaction and determines the amount of product formed. In this case, if barium ions (Ba2+) and sulfate ions (SO42−) are the reactants, the limiting reagent would be the one that is present in lower molar quantity. The one in excess would be the one that is present in higher molar quantity. Without the quantities of each ion provided, it is difficult to determine which is the limiting reagent and which is in excess.
What colour is obtained on adding KSCN reagent to ferric ion solution?
A blood-red color is obtained when potassium thiocyanate (KSCN) reagent is added to a ferric ion solution. This color change is due to the formation of a ferric thiocyanate complex.
What is the oxidation number of ag in tollens reagent?
The oxidation number of silver (Ag) in Tollens' reagent (Ag(NH3)2+) is +1. This is because the overall charge of the complex ion is +1, and each ammonia molecule is neutral, leaving the silver ion with a +1 charge.
How are metal ions detected in polluted water?
They are detected by chemical methods of analysis as spectrophotometry, ion specific electrodes, titrimetry, etc.
Which reagent can be used to identify nickel ion?
Dimethylglyoxime can be used as a reagent to identify nickel ions. It forms a red precipitate with nickel ions, allowing for easy visual detection.
What is role of ion pair reagent in mobile phase of HPLC?
Ion pair reagents are used in HPLC to improve the separation of ionic compounds such as acids or bases. They work by forming ion pairs with the analytes, which helps to increase their retention on the stationary phase and improve their separation on the chromatographic column. This can lead to better peak shape, resolution, and sensitivity in the analysis.
