URGENT help in Chem p5! bfore exam!

[Youme&I]

Hey guys! I m still not sure about paper 5 chemistry, for example a question from Nov10/53 question

Using the apparatus shown in (c) design a laboratory experiment to test your prediction
in (a). In addition to the standard apparatus present in a laboratory you are provided with the
following materials.

• 2.00 mol dm–3 aqueous hydrogen peroxide
• a supply of manganese(IV) oxide
(i) Complete the table below to show how you would prepare five solutions of aqueous
hydrogen peroxide. Make sure that the correct units are recorded.
expt No. volume of H2 O2 volume of H2O concentration of H2O2
1
2
3
4
5

Note That: I dont understand where to get all the amounts to fill in to the table!

 

[filza94]

FOR Chemistry PAPER 33!!!!!!!!!!

hydrated ammonim salt titrated with KMnO4
usual salt analysis
one thermal question

We have to titrate ammonium nitrate with KMn04 or would we need to oxidize potassium iodide in the

presence of ammonium nitrate and then titrate the resulting solution with sodium thiosulphate? :|

see question no.1 in june2008-31
a similar question is expected!

 

[Youme&I]

what do u mean filza94, I just want to know how to fill in the table in paper 5 not paper 3!

 

[filza94]

okay sorriee......