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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.
Which ion is detected by Nessler's reagent?
NH4+ is detected by nessler's reagent.
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.
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 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.
Which ion is detected by Nessler's reagent?
NH4+ is detected by nessler's reagent.
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.
An acid base pair is known as what?
When a acid/base pair with a common anion (salt ion) is meant, then it is called a conjugated pair. When both of them are in the same solution in about equal amounts then they form a buffer solution, so they also can be named as buffering pair.
What is the chemical responsible for the mayer's reagent?
the mercury atom will dissociate from the chloride ion
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.
Explain what is meant by a positive test for an ion?
A positive test for an ion indicates the presence of that specific ion in a sample. It could involve observing a characteristic color change, precipitation, or gas evolution upon the addition of a specific reagent known to react with that ion. These tests are based on the unique chemical properties of each ion.
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 meant by when there are two lone electons?
Called lone pair(s) of electrons,this exists when the atom such as Nitrogen in the ammonia has pair of electrons used to form what is called coordination bond as the lone pair of nitrogen occupy an vacant orbital like the orbital of the hydrogen proton released from acids. lone pair of ammonia + vacant orbital of hydrogen proton = Ammonium ion
