• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Redox Titration: Permanganate against Oxalate (Ethanedioate)

Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  • Essay length: 536 words
  • Submitted: 19/08/2003
Share this essay:
Do not show me this again

Are you in the right place?

Jump to Chemistry and see how teachers think you should prepare in:

GCSE Aqueous Chemistry

The first 200 words of this essay...

Redox Titration: Permanganate against Oxalate (Ethanedioate)

Aims: Find out the concentration of oxalic acid and oxalate by titration with sodium hydroxide.

Chemical: Mixture of oxalic acid and oxalate, standard NaOH(about 0.05M), standard KMnO4(about 0.02M),

2M H2SO4, phenolphthalein indicator

Apparatus: Titration apparatus, Bunsen burner

Procedure:

(A) Dilution

The mixture of oxalic acid and oxalate should be diluted ten times. Using pipette filler pipette 25cm3 of given solution and dilute it to 250cm3 in a volumetric flask. The resulting solution can be used for subsequent titration.

(B) Acid-base titration

Titrate a 25cm3 portion of the diluted mixture against the given standard Sodium Hydroxide (0.05M). Add 3 drops of Phenolphthalein indicator. At the end point, the solution will change from colorless to pink. Repeat the titration for 3 more times to find out the average volume.

(C) Redox titration

Titrate another 25cm3 portion of the diluted mixture against the given standard potassium permanganate KMnO4 (0.02M). For each titration, you should add about 20cm3 2M sulphuric acid and heat the mixture to above 343K before adding the potassium permanganate. Further heating is necessary during

Read more
The above preview is unformatted text

Found what you're looking for?

  • Start learning 29% faster today
  • Over 150,000 essays available
  • Just £6.99 a month

Marked by a teacher

This essay has been marked by one of our great teachers. You can read the full teachers notes when you download the essay.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review on the essay page.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review under the essay preview on this page.

Do not show me this again

Are you in the right place?

Jump to Chemistry and see how teachers think you should prepare in: