You are Here: Home

Redox Titration- easy calc but i need your help ;) watch

1. Hey

used to be a don at these but I don't know whats happening lol

here it is :

24.3cm3 of 0.02 mol dm-3 KmnO4 reacted with 20.0 cm3 of an iron (II) solution
Calculate the molarity of the iron (II) solution

please see attatched for what I've done so far
Attached Images

2. (Original post by CasualSoul)
Hey

used to be a don at these but I don't know whats happening lol

here it is :

24.3cm3 of 0.02 mol dm-3 KmnO4 reacted with 20.0 cm3 of an iron (II) solution
Calculate the molarity of the iron (II) solution

please see attatched for what I've done so far
You have made a simple error.

Manganate(VII) is an oxidising agent and changes the oxidation state of the iron(II) to iron(III).

So your iron half equation is:

Fe2+ --> Fe3+ + 1e
3. (Original post by charco)
You have made a simple error.

Manganate(VII) is an oxidising agent and changes the oxidation state of the iron(II) to iron(III).

So your iron half equation is:

Fe2+ --> Fe3+ + 1e
oo right

says I must rate another member but you are so good at chemistry!!! Thanks

Related university courses

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: March 9, 2013
The home of Results and Clearing

2,861

people online now

1,567,000

students helped last year
Today on TSR

University open days

1. SAE Institute
Animation, Audio, Film, Games, Music, Business, Web Further education
Thu, 16 Aug '18
2. Bournemouth University
Fri, 17 Aug '18
3. University of Bolton