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    Chemistry Exam thoughts

    Well... Stilling cramming a bit of my industrial chem. Lets hope it stays Frasch in my mind. (Industrial chem pun :P)

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    Re: Chemistry Exam thoughts

    First few M/C ADADA... Exam was fairly difficult, but the 7/5/4 markers were not too bad. Last question in Shipwrecks was abysmal, i mean Volta and Davy in regards to improving ocean going vessels to corrosion? Come on

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    Re: Chemistry Exam thoughts

    I agree I found this paper pretty hard but industrial was easy just hoping that we didn't have to talk about all three processes in the last question
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    Re: Chemistry Exam thoughts

    I didn’t find it very difficult apart from a few multiple choice questions which were harder. I only had trouble on that heat of combustion question, other questions were all quite straightforward. Hoping for 90+ raw
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    Re: Chemistry Exam thoughts

    Wow!

    Straight forward AF.

    7 marker on Haber zzz

    Was hoping for something a little different this year, but pretty much a stock, standard paper.
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    Re: Chemistry Exam thoughts

    b6 cut off?

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    Re: Chemistry Exam thoughts

    Quote Originally Posted by Fizzy_Cyst View Post
    Wow!

    Straight forward AF.

    7 marker on Haber zzz

    Was hoping for something a little different this year, but pretty much a stock, standard paper.
    For that question I could only think of mentioning temperature, pressure and catalyst. I had a huge mind blank and couldn't think of anything else to talk about (like the 3:1 ratio, monitoring impurities etc) hopefully I don't lose too many marks for that since it was out of 7 :/
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    Re: Chemistry Exam thoughts

    Quote Originally Posted by Sp3ctre View Post
    I didn’t find it very difficult apart from a few multiple choice questions which were harder. I only had trouble on that heat of combustion question, other questions were all quite straightforward. Hoping for 90+ raw
    I thought the heat of combustion was good, you just had to get the balanced equation for combustion of ethanol then convert 1kg of CO2 to moles then use the stoichiometric ratio of CO2 to ethanol to get moles of ethanol, then use 1360 X moles ethanol to get answer

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    Junior Member Sp3ctre's Avatar
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    Re: Chemistry Exam thoughts

    Quote Originally Posted by blinkandyoullmissit View Post
    I thought the heat of combustion was good, you just had to get the balanced equation for combustion of ethanol then convert 1kg of CO2 to moles then use the stoichiometric ratio of CO2 to ethanol to get moles of ethanol, then use 1360 X moles ethanol to get answer
    Yeah I wrote out the equation, but wrote some bs working after that because I hadn't really come across any similar question to that, probably should've spent some more time on chemistry instead of the whole week before on physics lol
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    Re: Chemistry Exam thoughts

    for someone who is horrendus at chem it was a average paper , i found industrial chem hard idk why. im still not expecting a good mark but it wasnt the worst it couldve been
    Last edited by zeee1999; 1 Nov 2017 at 2:51 PM.
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    Re: Chemistry Exam thoughts

    Quote Originally Posted by Sp3ctre View Post
    For that question I could only think of mentioning temperature, pressure and catalyst. I had a huge mind blank and couldn't think of anything else to talk about (like the 3:1 ratio, monitoring impurities etc) hopefully I don't lose too many marks for that since it was out of 7 :/
    its 4:2 btw lol

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    Re: Chemistry Exam thoughts

    Quote Originally Posted by ichila101 View Post
    I agree I found this paper pretty hard but industrial was easy just hoping that we didn't have to talk about all three processes in the last question
    How many did you talk about? i thought u had to talk about 3 since it wanted improvements due to tech.

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    Re: Chemistry Exam thoughts

    Quote Originally Posted by same1111 View Post
    How many did you talk about? i thought u had to talk about 3 since it wanted improvements due to tech.
    i spoke about all three?? bc essentially the membrane process was the end product of trying to reduce environmental and technical problems
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    Re: Chemistry Exam thoughts

    it 3:1 for the moles of reactams
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    Re: Chemistry Exam thoughts

    Quote Originally Posted by same1111 View Post
    its 4:2 btw lol
    I meant the ratio of reactants is 3:1
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    Re: Chemistry Exam thoughts

    Quote Originally Posted by zeee1999 View Post
    for someone who is horrendus at chem it was a average paper , i found industrial chem hard idk why
    industrial was ez peaz tbh i think i lost all my marks on the calculation questions and the last few multis bc i had no idea how to do them...i wouldve left them blank but was like eh better bs some shit and hope for a few pity marks

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    Re: Chemistry Exam thoughts

    Quote Originally Posted by aycaramba View Post
    industrial was ez peaz tbh i think i lost all my marks on the calculation questions and the last few multis bc i had no idea how to do them...i wouldve left them blank but was like eh better bs some shit and hope for a few pity marks
    same tbh i put some random working out for the sake of getting a mark here and there i had no idea what i was doing
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    Re: Chemistry Exam thoughts

    What did u guys get for the zinc electrode ques?

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    Re: Chemistry Exam thoughts

    Which MCQ do you guys have questions about?

    I don't really see anything that's all that tricky
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    Re: Chemistry Exam thoughts

    Quote Originally Posted by Fizzy_Cyst View Post
    Which MCQ do you guys have questions about?

    I don't really see anything that's all that tricky
    u've seen the paper?

    idk i guessed the last two bc none of my answers were in the multiple choice lol

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    Re: Chemistry Exam thoughts

    Quote Originally Posted by aycaramba View Post
    What did u guys get for the zinc electrode ques?
    I just said 10 + 1 so silver had 11grams? why was it worth 4 marks?

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    Re: Chemistry Exam thoughts

    Quote Originally Posted by aycaramba View Post
    What did u guys get for the zinc electrode ques?
    What did you get?

    I got like 13.3g
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    Re: Chemistry Exam thoughts

    Quote Originally Posted by blinkandyoullmissit View Post
    I just said 10 + 1 so silver had 11grams? why was it worth 4 marks?
    Had to do balanced ionic equation, find molar ratio between Zn and Ag, determine which was oxidised and which was reduced, find moles of Zn lost and then use molar ratio to find moles of silver gained, then convert to mass of Silver
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    Re: Chemistry Exam thoughts

    Quote Originally Posted by fizzy_cyst View Post
    what did you get?

    I got like 13.3g
    fuck i minused 3 from 10

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    Re: Chemistry Exam thoughts

    Quote Originally Posted by aycaramba View Post
    fuck i minused 3 from 10
    fck i only wrote 3. something lol i didnt add the fcking ten rofl.

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