All Questions
6
questions
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Should I write formula for oxalate or oxalic acid while balancing a redox reaction using the ion-electron method?
Problem:
Balance the following reaction using the ion-electron method:
$$\ce{H2C2O4 + KMnO4 + H2SO4 -> CO2 + MnSO4 + K2SO4 + H2O}$$
My book's solution:
Oxidation half-reaction:
$$\ce{C2O4^2- -> ...
- 201
0
votes
2
answers
84
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Writing a chemical equation with a reactant of unspecified chain length [closed]
Would appreciate it if I got some general tips and hints and not the solution cause I'm trying to learn from this question :)
The question is as follows:
FA1 is a solution containing $\pu{5.00 g dm-3}...
user104941
1
vote
2
answers
390
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Neutralization of alkali solution by a mix of strong acids
$\pu{0.1 M}$ $\ce{HCl}$ and $\pu{0.2 M}$ $\ce{H2SO4}$ solutions are mixed in equal volume. This solution is diluted to double the volume. Find the volume of $\pu{0.1 M}$ $\ce{NaOH}$ which can be ...
- 141
0
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0
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63
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Theoritical amount of Sodium Bicarbonate
I have to find the theoretical amount of sodium bicarbonate. The steps I followed in order to produce it are:
15g $\ce{NaCl}$ are added to a beaker. Then we add 87.5 mL of $\ce{NH3}(12M)$
We add 115g ...
user40808
5
votes
1
answer
1k
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Back titration of excess HCl used for dissolving limestone
$15.0~\mathrm{mL}$ of $1.4~\mathrm{M}\ \ce{HCl}$ was mixed with $1.00~\mathrm{g}$ of limestone (impure $\ce{CaCO3}$) until all the solid had dissolved. The solution was then transferred to a conical ...
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-1
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1
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I forgot the basics of writing equations, or maybe it is not me? [closed]
Sulfuric acid is commonly used for the pickling of iron to remove surface rust before galvanisation.
$$\ce{Fe2O3 (s) + 3H2SO4 (aq) -> Fe2(SO4)3 (aq) + 3 H2O (l)}$$
However, I am not sure if given:...
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