Table of Contents
What is mohrs salt used for?
Mohr’s salt is used in analytical chemistry as the preferred source of ferrous ions due to the solid’s extended shelf life and resistance to oxidation. Sulfuric acid is often added to solutions using ferrous ammonium sulfate in order to reduce the oxidation of the ferric iron.
Which salt is Mohr’s salt?
(II) ammonium sulfate
Mohrs salt
| PubChem CID | 16211143 |
|---|---|
| Structure | Find Similar Structures |
| Molecular Formula | FeH20N2O14S2 |
| Synonyms | Mohrs salt iron (II) ammonium sulfate Ammonium Ferrous Sulfate,(S) Fe.2H3N.2H2O4S.6H2O 10045-89-3 (anhydr.) More… |
| Molecular Weight | 392.1 |
What is formula of Mohr salt?
(NH₄)₂Fe(SO₄)₂·6H₂O
Ammonium iron(II) sulfate/Formula
Why is H2SO4 added to Mohr salt?
Ferrous ions of Mohr’s salt undergo hydrolysis in aqueous solution. To prevent the hydrolysis, Conc. H2SO4 needs to be added to the Mohr’s salt crystals during the preparation of its standard solution. Another reason is also to prevent the oxidation of Fe2+ ions of Mohr’s salt to Fe3+ ions.
What is the difference between Mohr’s salt and normal salt?
Mohr’s salt is also called as double salt which contain more than one simple salt. It undergoes complete dissociation in aqueous solutions. Mohr’s salt dissociates into Fe2+, NH4+, SO42- ions and give their individual chemical test.
What is Mohr salt Class 12?
Mohr salt is a double salt forming a single crystalline structure having the formula (NH4)2. FeSO4. 6H2O. The chemical name for Mohr’s salt is ferrous ammonium sulfate. In this titration Mohr salt acts as a reducing agent and potassium permanganate acts as an oxidising agent.
How do you make Mohr salt?
Mohr’s salt is prepared by dissolving an equimolar mixture of hydrated FeSO4. 7H2O and ammonium sulphate in the water containing a little of sulphuric acid. Take a clean 250 ml beaker; transfer 7 g of FeSO4 and 3.5 g of ammonium sulphate crystals to it. Add 2.3 ml of dilute sulphuric acid to prevent hydrolysis.
What happens when we drink Mohr’s salt?
SOLID Irritating to skin and eyes. If swallowed will cause nausea and vomiting.
What is the common name of Mohr’s salt?
Ammonium iron(II) sulfate
Ammonium iron(II) sulfate
| Names | |
|---|---|
| IUPAC name Ammonium iron(II) sulfate | |
| Other names Ferrous ammonium sulfate Ammonium iron sulfate Mohr’s salt | |
| Identifiers | |
| CAS Number | anhydrous: 10045-89-3 hexahydrate: 7783-85-9 |
Why is H2SO4 used in titration?
Sulphuric Acid (H2SO4) is used in the redox titration process because it provides the H(+) ions necessary for the reaction to occur more quickly whilst the sulphate(-) ions barely react during the reaction. Therefore, sulfuric acid is added to make the solution acidic.
What are the uses of Mohr’s salt?
Mohr’s salt is used in analytical chemistry as the preferred source of ferrous ions due to the solid’s extended shelf life and resistance to oxidation. Sulfuric acid is often added to solutions using ferrous ammonium sulfate in order to reduce the oxidation of the ferric iron.
Why is Mohr’s salt called double salt?
Mohr’s Salt Known as Double Salt The salts which contain more than one simple salt are called double salts. These salts undergo complete dissociation in the aqueous solutions. They give reactions of all ions present in both the simple salts of all the ions present in both the simple salts.
What is the n factor of Mohr’s salt?
Mohr’s salt chemically known as Ammonium iron (II) sulfate having the formula FeSO4(NH4)2SO4.6H2O has molar mass 392gmol-1. It is a primary standard. Its equivalent mass is 392/1 = 392 as its n factor is 1 as per the following reaction: It is a common laboratory reagent.
What is oxidation state of Fe in Mohr salt?
Oxidation state of Fe in Mohr’s salt is +1 +2 +3 0 Mohr. | Oxidation state of Fe in Mohr’s salt is: A. +1. B. +2. C. +3. D. 0. Please scroll down to see the correct answer and solution guide.