Oxidation of Manganese
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Oxidation of Manganese
Alright I am doing a lab about oxidation of manganese I need to find the products of these reactants and balance the chemical equation. This is what I have.
[b]THIS CHART[/b]
[u]Compound [/u] [u]Oxidation # of Mn[/u]
KMnO4------------------+7
K2MnO4-----------------+6
MnO2--------------------+4
MnSO4-------------------+2
MnCl3--------------------+3
1.)KMnO4+H2SO4+NaHSO3-->
2.)KMnO4+NaOH+NaHSO3-->
3.)KMnO4+NaHSO3---->
4.) KMnO4 + EDTA + MnSO4(s)---->
what role did EDTA play in this reaction?
[b]THIS CHART[/b]
[u]Compound [/u] [u]Oxidation # of Mn[/u]
KMnO4------------------+7
K2MnO4-----------------+6
MnO2--------------------+4
MnSO4-------------------+2
MnCl3--------------------+3
1.)KMnO4+H2SO4+NaHSO3-->
2.)KMnO4+NaOH+NaHSO3-->
3.)KMnO4+NaHSO3---->
4.) KMnO4 + EDTA + MnSO4(s)---->
what role did EDTA play in this reaction?
Did you try it at all?
Here are some clues
1.)KMnO4+H2SO4+NaHSO3--> MnSO4, S(4+)--> S(6+)
2.)KMnO4+NaOH+NaHSO3--> K2MnO4; S(4+)--> S(6+)
3.)KMnO4+NaHSO3----> MnSO4, S(4+)--> S(6+)
4.) KMnO4 + EDTA + MnSO4(s)----> MnO2; EDTA as an acid
what role did EDTA play in this reaction?
Here are some clues
1.)KMnO4+H2SO4+NaHSO3--> MnSO4, S(4+)--> S(6+)
2.)KMnO4+NaOH+NaHSO3--> K2MnO4; S(4+)--> S(6+)
3.)KMnO4+NaHSO3----> MnSO4, S(4+)--> S(6+)
4.) KMnO4 + EDTA + MnSO4(s)----> MnO2; EDTA as an acid
what role did EDTA play in this reaction?
Remember safety first! Check MSDS and consult with professionals before performing risky experiments.
1) H++2KMnO4(aq)+H2SO4(aq)+5NaHSO3(aq)->2MnSO4(aq)+5K2SO4(aq)+NaSO4(aq)+3H2O
H+ already comes from H2SO4; NaSO4 incorrect: Na2SO4 correct
2)
2KMnO4(aq)+3NaOH(aq) + NaHSO3(aq) -> K2SO4 +2K2MnO4(aq) + 2Na2SO4(aq) + 2H2O
correct
3)
2KMnO4 + 3NaHSO3 -> 2MnO2(s)+ K2MnO4 (aq) + 3Na2SO4(aq) + H+ + H2O
Incorrect. K2MnO4 forms only at basic conditions. Here you generate acid. Depends on the amount of reagents the outcome is MnO2 or MnSO4 or both
H+ already comes from H2SO4; NaSO4 incorrect: Na2SO4 correct
2)
2KMnO4(aq)+3NaOH(aq) + NaHSO3(aq) -> K2SO4 +2K2MnO4(aq) + 2Na2SO4(aq) + 2H2O
correct
3)
2KMnO4 + 3NaHSO3 -> 2MnO2(s)+ K2MnO4 (aq) + 3Na2SO4(aq) + H+ + H2O
Incorrect. K2MnO4 forms only at basic conditions. Here you generate acid. Depends on the amount of reagents the outcome is MnO2 or MnSO4 or both
Remember safety first! Check MSDS and consult with professionals before performing risky experiments.
2-nd balanced
http://www.webqc.org/balance.php?reacti ... 2SO4%2BH2O
http://www.webqc.org/balance.php?reacti ... 2SO4%2BH2O
Remember safety first! Check MSDS and consult with professionals before performing risky experiments.
What is K2SOR?
4 KMnO4 + H2SO4 + 10 NaHSO3 = 4 MnSO4(aq) + 2 K2SO4 + 5 Na2SO4 + 6 H2O
That's it!
4 KMnO4 + H2SO4 + 10 NaHSO3 = 4 MnSO4(aq) + 2 K2SO4 + 5 Na2SO4 + 6 H2O
That's it!
Last edited by expert on Mon Sep 19, 2011 9:02 pm, edited 1 time in total.
Remember safety first! Check MSDS and consult with professionals before performing risky experiments.
Incorrect
Correct is
4 KMnO4 + H2SO4 + 10 NaHSO3 = 4 MnSO4 + 2 K2SO4 + 5 Na2SO4 + 6 H2O
Use this tool if lazy http://www.webqc.org/balance.php
Correct is
4 KMnO4 + H2SO4 + 10 NaHSO3 = 4 MnSO4 + 2 K2SO4 + 5 Na2SO4 + 6 H2O
Use this tool if lazy http://www.webqc.org/balance.php
Remember safety first! Check MSDS and consult with professionals before performing risky experiments.