Turn on thread page Beta
    Offline

    3
    ReputationRep:
    Uses of transition element
    ni and copper= coin
    ti=hip placement
    cr= stainless steel
    fe=post boxes
    brass=musical instrument
    what else?!
    Offline

    1
    ReputationRep:
    I forgot how to do Hess's:afraid:
    Offline

    14
    ReputationRep:
    (Original post by Killmepls)
    Ohh I hope they don't ask us to draw structure of it /ligand complex that will be worse than the Jan question on hair
    They would tell you how to represent it or give the symbol to do so, easy marks, just remember to only draw coordinate bonds from species with lone pairs
    Offline

    14
    ReputationRep:
    (Original post by arvin_infinity)
    Uses of transition element
    ni and copper= coin
    ti=hip placement
    cr= stainless steel
    fe=post boxes
    what else?!
    Lol, i doubt they will ask that, when askig for properties of transition metals and/or their ions thr things to remember are: act as catalysts, form coloured compounds, form complex ions, and act like metals (strong etc), also that they have variable oxidation states
    Offline

    0
    ReputationRep:
    (Original post by Twinkles)
    I forgot how to do Hess's:afraid:
    It helps me to visualise it:

    Just remember the line on the left and right have to be equal in height, so you just add up all the parts you know, and see what the difference has to be and where
    Offline

    0
    ReputationRep:
    (Original post by arvin_infinity)
    Uses of transition element
    ni and copper= coin
    ti=hip placement
    cr= stainless steel
    fe=post boxes
    brass=musical instrument
    what else?!
    Uses of trasition elements will not be tested
    Offline

    0
    ReputationRep:
    aaarrgghhhhhhhhhhhhhhhh
    what is the proper fuel cell equation guys??? at each electrode??
    Offline

    14
    ReputationRep:
    (Original post by Twinkles)
    I forgot how to do Hess's:afraid:
    Just follow the arrows, if you have to go from arrow to tip reverse the sign. Then add them all together
    Offline

    14
    ReputationRep:
    (Original post by 786girl)
    aaarrgghhhhhhhhhhhhhhhh
    what is the proper fuel cell equation guys??? at each electrode??
    Umm Ecell= the more positive one- the more negative one

    The more negative one goes backwards...

    Dont really know what ur refering to
    Offline

    1
    ReputationRep:
    (Original post by wbataylor)
    Uses of trasition elements will not be tested
    OCR would probably sneak that as an one mark question.
    Plus they would stick a random question baffling everyone.
    Offline

    2
    ReputationRep:
    (Original post by 786girl)
    aaarrgghhhhhhhhhhhhhhhh
    what is the proper fuel cell equation guys??? at each electrode??
    2H2O + 2e- -> H2 + 2OH- negative electrode (this gets swapped round in the overall equation because its the more negative one)
    .05 O2 + H2O + 2e- -> 2OH- Positive electrode
    2H2 + O2 -> 2H2O

    someone correct me if i am wrong
    Offline

    0
    ReputationRep:
    Just to verify, at which electrode does Red and Ox take place?

    Is it Red at Cathode?

    Is it Ox at Anode?
    Offline

    2
    ReputationRep:
    I am gonna wear my braniac t-shirt and RAPE this exam! F***CK EAH
    Offline

    0
    ReputationRep:
    (Original post by jlcf)
    OCR would probably sneak that as an one mark question.
    Plus they would stick a random question baffling everyone.
    I know what you mean lol, probably one of those 'suggest' questions
    Offline

    0
    ReputationRep:
    which complexes have trigonal planar shapes guys?
    Offline

    2
    ReputationRep:
    Guys, just in case they ask, we have to acidify the reducing agent solution in redox titration to provide H* for redox to take place right
    Offline

    0
    ReputationRep:
    (Original post by Student21)
    2H2O + 2e- -> H2 + 2OH- negative electrode (this gets swapped round in the overall equation because its the more negative one)
    .05 O2 + H2O + 2e- -> 2OH- Positive electrode
    2H2 + O2 -> 2H2O

    someone correct me if i am wrong
    Im sure its the other way round?
    Offline

    3
    ReputationRep:
    (Original post by wbataylor)
    Uses of trasition elements will not be tested
    Its all over the past papers! but if you say so!

    DO I need know cr(h2o)6 colour?
    Offline

    0
    ReputationRep:
    (Original post by sportycricketer)
    Just to verify, at which electrode does Red and Ox take place?

    Is it Red at Cathode?

    Is it Ox at Anode?
    Ok so we know electrons are going TOWARDS the anode, because it is positive, so eqn will be:

    X2+ + e- ---> X+

    RIG

    Reduction is gain of electrons.

    So reduction occurs at the anode.

    Correct me if I'm wrong anybody?
    Offline

    0
    ReputationRep:
    (Original post by arvin_infinity)
    Its all over the past papers! but if you say so!

    DO I need know cr(h2o)6 colour?
    Pink? And yes

    Edit sorry I was thinking of Cobalt, ignore me.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: December 10, 2012

University open days

  1. Norwich University of the Arts
    Postgraduate Open Days Postgraduate
    Thu, 19 Jul '18
  2. University of Sunderland
    Postgraduate Open Day Postgraduate
    Thu, 19 Jul '18
  3. Plymouth College of Art
    All MA Programmes Postgraduate
    Thu, 19 Jul '18
Poll
How are you feeling in the run-up to Results Day 2018?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.