Hey there! Sign in to join this conversationNew here? Join for free
    Offline

    4
    ReputationRep:
    to speed up rate at which solid dissolves at i think
    Offline

    2
    ReputationRep:
    This paper was easy as hell... NO mistakes ... Where is the Poll station.....i tick marked 3 boxes in titration question..last 3
    Offline

    17
    ReputationRep:
    (Original post by aaljhfgahsj)
    calculations:

    The faradays one was 180g

    the concordant results was 22.53 (recurring)

    2.75g for mass of co2
    and 1500cm3 for volume
    (i think thats all there was)
    yessss i got all those!
    Offline

    2
    ReputationRep:
    IT WAS SO HARD!!!!! Oh my god I LOST SO MANY MARKS ON THIS PAPER!!!
    Offline

    11
    ReputationRep:
    (Original post by meme259)
    Why did the student heat/warm the acid? In the question about making salts.
    I put because increasing the temperature increases the rate of reaction.

    On the first page, what did everyone get for the piece of apparatus labelled A? I put "glass rod" but others have put "stirrer" and "thermometer".... Also, was the mixture of sand, salt and water a solution or suspension?
    Offline

    0
    ReputationRep:
    (Original post by F0X)
    I put because increasing the temperature increases the rate of reaction.

    On the first page, what did everyone get for the piece of apparatus labelled A? I put "glass rod" but others have put "stirrer" and "thermometer".... Also, was the mixture of sand, salt and water a solution or suspension?
    yeah i put 'stirrer' but I feel like the correct answer is 'glass rod'

    the mixture was a solution because it said 'what is the clear liquid in stage A' - and NB not 'what is the substance in stage A' or anything like that

    also I believe that the temperature question, as well as rate of reaction, may have been related to the fact that copper is extremely unreactive, but maybe not given that copper oxide is obviously a different substance
    Offline

    1
    ReputationRep:
    (Original post by Martins1)
    q = change in temperature * mass of water * 4.18
    n = mass burnt * Mr
    molar enthalpy change = -q/n
    Haha thanks
    How was the paper?
    Offline

    9
    ReputationRep:
    (Original post by umang-23)
    Haha thanks
    How was the paper?
    Good thanks - other than the question about incomplete combustion which I messed up in the exam and as soon as I walked out the hall I could solve it... ughhh. But yeah otherwise pretty good thx
    Offline

    4
    ReputationRep:
    Ok boys,
    Im in some desperate need.
    I do my Mocs for Chemistry Paper 1 and 2 in exactly a Week and I'm ******** myself.
    I only intended to do tripple as of 4 months ago and all seemed ok other than chem.
    Fast forward and I'm crapping myself. It would be great if you have any way to find last years paper. Yes you say, if you cant handle tripple dont do it and you wont prove anything to yourself. BUT if I get a C I will be forced into doing dual which is probs not the option since im doing all three for A level. Help a brother in need. I an trying to teach myself things that i didnt know were in paper 2.

    Peace Out and may my results not kill me
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    What's your favourite Christmas sweets?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • 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

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