All Questions
7
questions
-1
votes
0
answers
66
views
Does iron submerged in water rust? [duplicate]
I understand that iron rusts if left in air for prolonged periods of time.
In a discussion, I was challenged that iron never rusts if completely submerged in water, as it needs oxygen.
I asked for the ...
- 115
-1
votes
2
answers
707
views
Why iron reacts with steam to give Fe3O4 not Fe2O3? [duplicate]
Why $\ce{Fe}$ with $\ce{H2O}$ gives $\ce{Fe3O4}$ not $\ce{Fe2O3}$?
Like, $\ce{Zn + H2O \rightarrow ZnO + H2}$, why $\ce{Fe}$ doesn't simply gives $\ce{Fe2O3}$ when it reacts with steam?
- 125
4
votes
1
answer
120
views
Redox titration, complex formation effect on lg'K?
We have performed the following redox titration
(1): $\ce{MnO_4^- + 8H^+ + 5Fe^2+ <=> Mn^2+ + 4H_2O + 5Fe^3+}$
where we have used a iron(II)solution (the analyte) and titrated it with a ...
- 43
1
vote
0
answers
72
views
Specifically how does the presence of moisture and oxygen affect the yield of ferrocene? [closed]
In a lab this week at uni we made ferrocene (I'm a second year Chemistry student). This was done by reacting nBuLi with cyclopentadiene (kept in freezer) to create the Cp anion in-situ.
To this ...
- 19
1
vote
0
answers
315
views
Equilvalence point in redox Titration of Fe(II) and Fe(III) with Reinhardt-Zimmermann solution
In the lab at university, we need to conduct a simultaneous determination of iron(II) and iron (III) ions using potassium permanganate solution.
In the first step, we just fill up our given sample ...
- 23
8
votes
2
answers
2k
views
Can hydrogen peroxide reduce ferric ion to ferrous ion?
I have studied that hydrogen peroxide always oxidizes ferrous ion to ferric ion (source of study : NCERT Chemistry Part II, Textbook for Class XI),
but a question came in IIT JEE 2015 which states:
...
- 393
-2
votes
1
answer
474
views
Rusting of iron is quicker in saline water than in ordinary water [duplicate]
I feel so because, saline water has more more electrons and because of that there will be oxidation will take place faster and hence the overall process will speed up. Is this explanation good enough ...
- 151