Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: sci0x on December 16, 2005, 07:19:37 PM
-
Could someone write the balanced equation for the reaction of K[MnO4] and Fe[C2O4]. xH2O.
I need it to find the concentration of the iron compound in grams per liter and the value of X.
-
Could someone write the balanced equation for the reaction of K[MnO4] and Fe[C2O4]. xH2O.
Show us what you've done so far. Here is my help: manganese loses 5 electrons, while carbonon gains only 2 (carbon will be in its highest oxidation form).
-
K[MnO4] + Fe[C2O4].xH2O = 5Mn + CO2 + Fe ? I doubt this is right.
-
The only two reagents that change their oxidation number are MnO4- and C2O4--
The other things are 'redundant'. Oh, and acid condition are required for manganese to change its oxidation state.
-
Moreover, I infer you are looking for information about ferrous oxalate: Fe[C2O4].2H2O
The number of molecules of water does not depend on the reaction we :) are trying to balance: it is something which simply deals with properties of ferrous oxalate.
-
The only two reagents that change their oxidation number are MnO4- and C2O4--
The other things are 'redundant'.
Are you sure? What is oxidation number of Fe in FeC2O4?
-
+2
So, you mean also Fe2+ is involved in the reaction? Ok, it might be. However, I think sci0x is looking for what I wrote in my last post.
-
sci0x needs to balance whole reaction to be able to calculate amount of ferric oxalate in the sample.
Both Fe2+ and oxalic acid (or oxalates) are commonly determined by manganometric method. Thus both oxidation reactions will be taking place in the reaction setup mentioned, not only one of them.
-
Could someone please, just write down the balanced equation. I'm getting confused and I need it to finish this question.
-
3MnO4- + 5Fe2+ + 5C2O4-- + 24H+ -> 3Mn2+ + 5Fe3+ + 10CO2 + 12H2O
-
Thank you so much, you're a life saver
-
Oh sorry bout this, i thought I could do this, how do you calculate x?
I have Conc of K[MnO4] is 0.018M
Volume K[MnO4] is 25ml
Conc of the Fe(C2O4}.xH2O is 4.325 g/litre
For my experiment it took 19.4cm K[MnO4] to standardise the iron compound.