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VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: apsamrit on March 14, 2011, 01:19:07 pm

Title: Urgent: Redox titration of the fertiliser PLEASE PLEASE really need help
Post by: apsamrit on March 14, 2011, 01:19:07 pm

Can someone please help me with the prac.
We have to design an experiment on determination of iron(2) content of lawn fertliser by redox titration. I don't know how to do the experiment as i have not done and redox titration before. Can some one provide me with the steps to do and list the materials required?

Thanks in advance.

Title: Re: Urgent: Redox titration of the fertiliser PLEASE PLEASE really need help
Post by: thushan on March 14, 2011, 07:58:16 pm

you could oxidise it to Fe3+ using standardised KMnO4.
to standardise KMnO4 you'd need to use oxalic acid as a primary standard.

Title: Re: Urgent: Redox titration of the fertiliser PLEASE PLEASE really need help
Post by: zibb3r on March 14, 2011, 08:16:16 pm

use this: http://resources.mhs.vic.edu.au/chemistry/year12/3pracproc.pdf

page 11

Good guideline

Title: Re: Urgent: Redox titration of the fertiliser PLEASE PLEASE really need help
Post by: apsamrit on March 16, 2011, 03:14:44 pm

Quote from: zibb3r on March 14, 2011, 08:16:16 pm

use this: http://resources.mhs.vic.edu.au/chemistry/year12/3pracproc.pdf

page 11

Good guideline

Thanks a lot.