Edexcel Chemistry Unit 5 June 19 2012

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As far as I remember they asked for the reagents. You can't go and get OH from the shelf, you would have had to have said NaOH. Think I made the same mistake actually :/

Ahh yeah that's true :s-smilie:

Was it 1 or 2 marks?
Maybe they'll say something like "allow OH-" in the mark scheme, who knows :tongue:

Reply 1381

sceptic_medic

Original post by sunnybacon

Ahh yeah that's true :s-smilie:

Was it 1 or 2 marks?
Maybe they'll say something like "allow OH-" in the mark scheme, who knows :tongue:

I did say MnSO4 solution though so that would be 1. It was 2 marks I believe

Reply 1382

Silkysam

Original post by sunnybacon

Ahh yeah that's true :s-smilie:

Was it 1 or 2 marks?
Maybe they'll say something like "allow OH-" in the mark scheme, who knows :tongue:

It was 2 marks.

Reply 1383

mnichols

Original post by Elle_6

But isnt a salt bridge not supposed to make a complex with the solution- would the potassium nitrate would have made a complex with the Ag ions?

not really sure, all i remember is being told many many times that it was nitrate /:

Reply 1384

Elle_6

Original post by mnichols

not really sure, all i remember is being told many many times that it was nitrate /:

Bummer!

Thank you :smile:

Reply 1385

Jecaw

Original post by Elle_6

But isnt a salt bridge not supposed to make a complex with the solution- would the potassium nitrate would have made a complex with the Ag ions?

Silver nitrate is soluble - and it can't be KCl as silver halides are insoluble and precipitate out of solution - I can't remember the other metal ions, but I remember being certain that they couldn't be used...

Reply 1386

ezioaudi77

Here is the paper for anyone interested. June 2012 Edexcel Chemistry Unit 5

Reply 1387

alz333

Original post by ezioaudi77

Here is the paper for anyone interested. June 2012 Edexcel Chemistry Unit 5

Thanks a -lot mate been looking for it everywhere by any chance is their a mark scheme available or grade boundaries
thanks

Reply 1388

ezioaudi77

Original post by alz333

Thanks a -lot mate been looking for it everywhere by any chance is their a mark scheme available or grade boundaries
thanks

Markschemes out on 17th, grade boundaries on results day.

Reply 1389

alz333

Original post by ezioaudi77

Markschemes out on 17th, grade boundaries on results day.

where can i find the markscheme on the 17th because it wont be available through edexcel website

Reply 1390

NutterFrutter

Original post by alz333

where can i find the markscheme on the 17th because it wont be available through edexcel website

Yes, it will. However, only someone who can login to the Edexcel website will be able to access it. I'm sure someone on here will post it. :wink:

Reply 1391

success111

HI, i have got an essay on green chemistry and don't know how to answer it. Here is the question:Green chemistry, also called sustainable chemistry, is a chemical philosophy encouraging the design of products and processes that reduce or eliminate the use and generation of hazardous substances. What are the principles behind green chemistry? PLEASE SOMEONE HELP ME HOW TO ANSWER THIS ESSAY QUESTION. THANK YOU. :smile:

Reply 1392

alz333

its the 17th any chance of giving me link to mark schemes thanks

Reply 1393

ezioaudi77

Couldn't find the other threads so here are the markschemes for Chemistry June 2012.

Unit 1

Unit 2

Unit 4

Unit 5

Reply 1394

alz333

Original post by ezioaudi77

Couldn't find the other threads so here are the markschemes for Chemistry June 2012.

Unit 1

Unit 2

Unit 4

Unit 5

thanks alot by any chance do you have a link for edexcel biology mark schemes for june 2012

Reply 1395

Hopefulmedstudent

Original post by alz333

thanks alot by any chance do you have a link for edexcel biology mark schemes for june 2012

Here you go:

Official Markschemes:
http://www.mediafire.com/?kjid3kb8klpnp3t

Question Papers:
http://www.mediafire.com/?5c8m5u23ub39zsu

Reply 1396

alz333

Original post by Hopefulmedstudent

Here you go:

Official Markschemes:
http://www.mediafire.com/?kjid3kb8klpnp3t

Question Papers:
http://www.mediafire.com/?5c8m5u23ub39zsu

thanks a million mate! by any chance do you have edexcel grade boundaries for june 2012

Reply 1397

bsblitter

If someone gets about 82/90 for unit 4 and 43/50 for unt 6 (international paper), what would they need for unt 5 to gurantee a strong A*?

Reply 1398

vampirerahim

Guys

The result we will get online 2mrw and the transcript from the school on 16
will it be the whole alevel ?
Or just A2 level AND THE CERTIFICATE will have full alevel