inorganic chemistry - Why does green ferrous sulfate solution change ...
Mar 12, 2021 · I was demonstrating the formation of $\ce {Fe (OH)2}$ precipitate at school when the light green $\ce {FeSO4}$ I was using reacted with dil. $\ce {HCl}$ turned yellow.
What is formed when you leave iron(II) sulfate in plain air?
May 11, 2015 · From : Upon exposure to air, it oxidizes to form a corrosive brown-yellow coating of basic ferric sulfate, which is an adduct of ferric oxide and ferric sulfate: $$\ce {12FeSO4 + 3O2 -> 4Fe2 …
How do acids prevent ferrous sulfate from getting oxidised?
Apr 3, 2021 · If $\\ce{FeSO4.7H2O}$ is dissolved in an acidic environment, for example in 0.05 M aqueous solutions of methanoic or ethanoic acid, would that prevent it from getting oxidized if an …
inorganic chemistry - Why the colour of KMnO4 at the end point of ...
Dec 12, 2017 · In the redox titration of $\ce {FeSO4}$ with $\ce {KMnO4}$, the colour change of the solution at the end point is colourless to light pink. Most laboratory manuals and books advice us to …
What is the balanced equation for the reaction of potassium ...
Sep 11, 2015 · Can you please help me understand if I got the half reactions correct? $$\ce {KMnO4 + FeSO4 + H2SO4 -> K2SO4 + MnSO4 + Fe2 (SO4)3 + H2O}$$ I found out that manganese is …
Why iron reacts differently with concentrated and dilute sulfuric acid?
Oct 11, 2015 · $ \ce {Fe +H2SO4 -> FeSO4 + H2} $ and when $\ce {H2SO4}$ is concentrated, $\ce {3Fe +8H2SO4 -> FeSO4 + Fe2 (SO4)3 + 4SO2 +8H2O}$ What made the reaction with dilute acid …
What is the Structure of FeSO₄ • NO? - Chemistry Stack Exchange
Aug 21, 2019 · What is the structure of $\ce {FeSO4 \cdot NO}$ that is formed when $\ce {NO}$ is passed through ferrous sulfate solution? If it is a brown ring complex then why does the complex …
Converting FeCl2 to FeSO4 - Chemistry Stack Exchange
Mar 23, 2024 · I have FeCl2 crystals and I want to produceFeSO4.7H2O based on the reaction below: $$\ce {FeCl2 + H2SO4 -> FeSO4 + HCl}$$ I dissolved the FeCl2 crystal in water, added equivalent …
inorganic chemistry - Preparation of standard Fe from FeSO4 • 7H2O ...
Sep 25, 2019 · We were assigned to prepare a standard Fe for spectrophotometry determination of Fe. What we did is basically obtain a mass of FeSO4•7H2O, add a small a mount of distilled water …
Distinguishing Brown Ring Test for Nitrates and Nitrites
May 22, 2018 · My question is how will one detect the presence of nitrates by brown ring test when nitrites are also present in the solution? Brown Ring Test for Nitrite $\ce {NO_2^- + H+ -> HNO2}$ …