Join TSR now and get all your revision questions answeredSign up now
    Offline

    2
    ReputationRep:
    (Original post by Nomes24)
    Hahaha honestly I don't think anyone had a clue on that 5 marker. I said stuff like more accurate and sensitive for titration, however more expensive, require indicator, subjective as to when reaction finished, burette for example could be dangerous (sharp). Then method 1 I said less sensitive, easier, however more steps where human error could go wrong e.g. filtration, subjective as to when all solid has formed, stuff like that can't remember really!

    One marker questions not a big deal, I did that I said boiling point decreases in halogens because iodine is a liquid for example.... how bloody stupid! I really should have re read my answer as I would've probably picked up on that XD I loved the ammonia questions, hopefully it will be two marks for both of us
    You probably got all the marks for that titration question.

    (I think I might have wrote something about the point of colour change being subjective too, but it might be my brain fooling myself...).

    I can't remember all the ammonia questions. I wasn't concentrating fully in that paper. I remember writing something along the lines of, 'no, increasing temperature counteracted by increasing yield of Y restoring equilibrium'...

    How well did you do overall in Biology and Chemistry, if you mind me asking?

    P.S. I also think AQA was very vague on certain questions. Especially that ratio question in B2, and the overall energy increase question in C3.
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by Blueyy__)
    i think acid on its own would be fine, CGP Textbook says "an acid catalyst (e.g. concentrated sulfuric acid)" - and the question wasn't linked specifically to ethyl ethanoate, was it? i thought it just said what catalyst is used in the production of esters (or something along that)

    No it was specifically asking for the catalyst used to react Ethanol and Ethanoic acid which would be Sulphuric Acid but I think most people struggled with that.
    Offline

    2
    ReputationRep:
    What did everyone put for the question where you had to tick either carbon dioxide, carbon monoxide, hydrogen and something else.. I can't remember the actual question 😁


    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    (Original post by zak7399)
    i wrote vinegar would i get a mark for that?
    probably not
    Offline

    3
    ReputationRep:
    (Original post by kittensrcute)
    on the 5mark question in c3 where you had to evaluate the two methods what were points you could put? I had no understanding of method one and am so scared ive just lost all 5 marks
    I basically put:
    *method 1 takes longer because theres more stages and you have to filter off the stuff blah blah blah...
    method 1 easier because method 2 have to add the acid slowly but method 1 you just add to excess
    *method 1 cheaper equiptment- beaker etc. method 2 requires specialised equiptments like a buretter
    *method two more accurate- can find out exactly how much acid neutralises whatever it was

    I have no idea if this is right or if I lost 5 marks I just made stuff up and tried to show I knew what titration was

    Does anyone know if this is right? :/
    Offline

    0
    ReputationRep:
    Aren't metal oxides insoluble?
    Offline

    3
    ReputationRep:
    (Original post by rumana101)
    it was for the question on soluble substances with the table
    Phew thank you... i think I put alkali not sure...
    Offline

    2
    ReputationRep:
    (Original post by maxjackson5)
    There was a question about writing a compound that contains silver ions. I wrote silver nitrate - is that correct?
    The next question was something about a substance containing carbonate ions - I wrote zinc carbonate - will that get a mark?
    I didn't really understand what the question was asking so I just guessed for both haha,
    I did not understand this question at all! I just copied the stuff from the boxes into the answer spaces 😂


    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    (Original post by neil20143)
    No it was specifically asking for the catalyst used to react Ethanol and Ethanoic acid which would be Sulphuric Acid but I think most people struggled with that.
    lets hope that they accept just "acid"
    Offline

    2
    ReputationRep:
    (Original post by Hannzz98)
    What did everyone put for the question where you had to tick either carbon dioxide, carbon monoxide, hydrogen and something else.. I can't remember the actual question 😁


    Posted from TSR Mobile
    It was hydrogen, but I got that question wrong.


    (Original post by neil20143)
    No it was specifically asking for the catalyst used to react Ethanol and Ethanoic acid which would be Sulphuric Acid but I think most people struggled with that.
    I believe they asked you 'what type of substance is used as the catalyst', so I wrote 'acid'.
    Offline

    2
    ReputationRep:
    (Original post by james12390087)
    Aren't metal oxides insoluble?
    Yeah they Are
    Offline

    0
    ReputationRep:
    It's hydrogen because sodium is a metal and acid + metal -------> salt + hydrogen
    Offline

    3
    ReputationRep:
    (Original post by morrissies)
    I got the same and I'm so mad at myself
    If you worked it out on the principle of 2, 8, 8, 8, 8 you get 3 outer shell electrons
    I completely forgot that after the third orbital 8 is no longer the maximum
    Never ever try to count the electrons cause you ll go wrong you can just look at the periodic table and look in which group it is. if it in group 7 than it has got 7 electrons in its outer shell. If it was in group 2 than it would have had 2 electrons in the outer shell
    Easy way 😊
    Offline

    0
    ReputationRep:
    (Original post by james12390087)
    Aren't metal oxides insoluble?
    Was that the question on what kind of compounds are metal oxides? I put insoluble is that right or was it bases?
    Offline

    2
    ReputationRep:
    (Original post by neil20143)
    No it was specifically asking for the catalyst used to react Ethanol and Ethanoic acid which would be Sulphuric Acid but I think most people struggled with that.
    (Original post by Palette)
    I believe they asked you 'what type of substance is used as the catalyst', so I wrote 'acid'.
    maybe in the mark scheme it will go '(sulfuric) acid'
    Offline

    3
    ReputationRep:
    I wrote dilute acid don't know why... do u think I could still be credited or not? :/
    Offline

    2
    ReputationRep:
    (Original post by Palette)
    You probably got all the marks for that titration question.

    (I think I might have wrote something about the point of colour change being subjective too, but it might be my brain fooling myself...).

    I can't remember all the ammonia questions. I wasn't concentrating fully in that paper. I remember writing something along the lines of, 'no, increasing temperature counteracted by increasing yield of Y restoring equilibrium'...

    How well did you do overall in Biology and Chemistry, if you mind me asking?

    P.S. I also think AQA was very vague on certain questions. Especially that ratio question in B2, and the overall energy increase question in C3.
    I would love if you were right :P

    I have this too: I get stressed out because I can't remember what I wrote/ what the question was and it really confuses me afterwards!

    That sounds about right. Did you say about why e.g as it's an endothermic reaction which takes in energy? I don't know if you need that but I put it to be on the safe side.

    Well my first reaction to B2 was that it was very hard, so I was worried about how I had done. I think I did decently on B2, obviously can't remember what all the questions were but the main ones I am worried about are bile xD other than that it went quite well, poss lost stupid marks here and there and also those strange applied science questions e.g. why weren't Mendel's ideas accepted I think I only got 1 mark there. We shall see..

    Hoping B3 will bring my mark up, I found it a lot easier and could answer all the questions, again will have made mistakes in places, although I can't remember where, but I know I will have done!

    Chemistry as a whole went a lot better than Biology, I am just more confident in Chem as it's more mathsy and that's my thing. Thought C2 was really easy, silly mistakes here and there but on a whole think it went well. C3 I thought was moderate, some questions were challenging but I hope I answered them well. I know I have made mistakes- stupid ones- like mixing up sodium and lithium, put boiling point decreased instead of increased- that kind of thing but on a whole I was really happy with all the equilibrium questions!

    Only thing is I have a vague memory of some kind of why doesn't iron fit in this group or something to do with the periodic table near the beginning of C3, do you know what the answer was?

    How have you found Biology and Chemistry? Sorry for such a long reply! Trying to self-evaluate ahah
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by Palette)
    I believe they asked you 'what type of substance is used as the catalyst', so I wrote 'acid'.
    They asked about Ethanol & Ethanoic Acid which is Sulfuric Acid. It's these types of questions that bring the grade boundaries down anyways so I wouldn't worry.
    Offline

    1
    ReputationRep:
    What was the question for this metal oxide alkali? I'm seeing it but I can't remember it
    • Thread Starter
    Offline

    2
    ReputationRep:
    I'm personally quite annoyed at AQA bringing in vague questions in both Chemistry and Biology so far.
 
 
 
Poll
How are you feeling about your A-level results?

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.