Hey there! Sign in to join this conversationNew here? Join for free
x Turn on thread page Beta
    Offline

    0
    ReputationRep:
    (Original post by klapsar)
    Yeah we both got aqueous silver (I) nitrate but he was just wondering if "ammonia" on its own would be acceptable for the last part of the question.
    i dont think so as there is dilute / conc ammonia so it would be best to specify..
    Offline

    12
    ReputationRep:
    (Original post by MathsNerd1)
    Me too, although the stupid errors I made were unreal!!! I forgot the charges for the lattice, put the wrong protons and therefore wrong isotope, wrong equation between water and Cl2 and the wrong ion responsible for bleaching :-/


    Posted from TSR Mobile
    I did wrong ion for bleaching, put VDV not perm-dipoles and dropped a few on the last table I think :/ hopefully I just scraped 80/90
    Offline

    0
    ReputationRep:
    (Original post by theworld)
    no? OH-
    I put that too but I'm thinking it could be wrong :/
    Offline

    0
    ReputationRep:
    (Original post by Shazz123e)
    I got 2 as well, we will get 2 marks for working out as ECF
    praise jesus
    Offline

    2
    ReputationRep:
    I heard AQA was really difficult. Thank god I did OCR :awesome:
    Offline

    2
    ReputationRep:
    Ion responsible for bleaching was ClO-. Don't know why so many people put OH- when there's no OH group in either HCl or HClO
    Offline

    12
    ReputationRep:
    I think most people assumed it was oh- from 2naoh
    Offline

    0
    ReputationRep:
    (Original post by theCreator)
    Ion responsible for bleaching was ClO-. Don't know why so many people put OH- when there's no OH group in either HCl or HClO
    it said sodium hydroxid
    Offline

    1
    ReputationRep:
    (Original post by anonymousecheese)
    could someone please tell what grade i would probably get
    isa- 30/40=b
    unit1- 35/60(thats me being optimistic)
    unit2- 80+/100(what i have a week to aim for)
    Well 30/40 for CW is C with 36 UMS,

    35/60 is 45 UMS

    and 80+ would be around 133 UMS

    Which would be a B/C overall, not entirely sure.
    Offline

    2
    ReputationRep:
    (Original post by Adalbosco)
    Perfect!
    same here
    i remember writing 360- because its how many degrees in a circle:rolleyes:
    Offline

    2
    ReputationRep:
    thank you
    ...bye bye A grade
    Offline

    1
    ReputationRep:
    (Original post by Dr. Django)
    I did wrong ion for bleaching, put VDV not perm-dipoles and dropped a few on the last table I think :/ hopefully I just scraped 80/90
    I wrote acid for the litmus thinking red meant it was acidic (even though I got the equation right). I got the oxidising agent question wrong and put van der Waals forces for PH3. :/
    Offline

    2
    ReputationRep:
    (Original post by theCreator)
    Ion responsible for bleaching was ClO-. Don't know why so many people put OH- when there's no OH group in either HCl or HClO
    to get bleach you have to react it with NaOH and you produce NaCL +NaCLO+H2O.

    People probably forgot the equation and they only remembered NaOH (like me)

    It is CLO- though...I remembered right after I got home T_T
    Offline

    2
    ReputationRep:
    (Original post by theworld)
    it said sodium hydroxid
    Yes but NaOH was a reactant, not a product.
    Offline

    12
    ReputationRep:
    So many mistakes, really annoyed now
    Offline

    1
    ReputationRep:
    (Original post by theworld)
    it said sodium hydroxid
    I thought it was asking for the oxidising agent of bleach formed by chlorine and water?
    Offline

    0
    ReputationRep:
    put us all out of our misery and make a marscheme? cmon no use argueing :L wait for some chap to make a markscheme
    Offline

    12
    ReputationRep:
    (Original post by theCreator)
    Ion responsible for bleaching was ClO-. Don't know why so many people put OH- when there's no OH group in either HCl or HClO
    dw im dumb
    Offline

    7
    ReputationRep:
    Was it NaOH + H2O or Cl2 + H2O?
    Offline

    0
    ReputationRep:
    (Original post by yodawg321)
    What did people get for the 2 bond angles? Think I messed up on that :/
    i put 104.5 and 109.5 i think
 
 
 
Turn on thread page Beta
Updated: December 4, 2013
Poll
Do you agree with the proposed ban on plastic straws and cotton buds?

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.