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    (Original post by ZoeWoah)
    I got C4H10O
    I got that too because it was an alcohol
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    (Original post by Darcy1)
    Its C4H10O
    Would they allow 2-butanol?
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    (Original post by f.loco)
    General formula for alcohol is CnH2n+1O

    Posted from TSR Mobile
    I think not

    Lets try C(n)H(2n+1)OH

    But for salters you have to write

    C(n)H(2n+2)O

    To get the mark

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    (Original post by f.loco)
    Youre right i fuccked up !!!

    Posted from TSR Mobile
    oh dear should only be worth one mark, I counted to make sure!
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    (Original post by Darcy1)
    Yeah exactly so because they wanted you to work out the total volume of the gases which were all the products, 2 moles of peroxide made 3 moles of gas so the ratio was 1 : 1.5
    You mean 1:1 1.5 aha, what did you get as your answer?
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    (Original post by ZoeWoah)
    i thought it was CnH2n+1OH
    Sometimes they won't allow OH at the end, they want the total of carbon atoms and then total of hydrogen atoms and then oxygen in that order
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    (Original post by Elhamm)
    I got that too because it was an alcohol
    Yes
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    (Original post by KINGYusuf)
    Btw what did you guys say the use of zeolite was for cracking? I said catalyst
    Me too, were you supposed to explain why or state that it speeds up the rxn? I didn't
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    (Original post by Adam971)
    Sometimes they won't allow OH at the end, they want the total of carbon atoms and then total of hydrogen atoms and then oxygen in that order
    ^this

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    (Original post by Adam971)
    Sometimes they won't allow OH at the end, they want the total of carbon atoms and then total of hydrogen atoms and then oxygen in that order
    Yeah i got C4H10O
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    (Original post by Adam971)
    ether
    Yeah you're right.
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    [QUOTE=Jessio;56116519]You mean 1:1 1.5 aha, what did you get as your answer?[/QUOTE

    1: 1.5

    I got 138.97
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    Does anyone know a teacher who is an OCR Salters examiner? If so, their input would be highly valued
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    (Original post by DominoMatrix227)
    Me too, were you supposed to explain why or state that it speeds up the rxn? I didn't
    It says state & it's only 1 mark so I doubt it. But incase I wrote that it speeds up the reaction
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    (Original post by DominoMatrix227)
    Does anyone know a teacher who is an OCR Salters examiner? If so, their input would be highly valued
    My teacher is but he hates TSR lol
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    I lost 8 STUPID marks

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    (Original post by Marli-Ruth)
    My teacher is but he hates TSR lol
    Could you please persuade him to do an unofficial mark scheme?
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    (Original post by f.loco)
    I lost 8 STUPID marks

    Posted from TSR Mobile
    Which questions?
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    (Original post by DominoMatrix227)
    Could you please persuade him to do an unofficial mark scheme?
    I'll email him btw what did you get for the why would Strontium replace Calcium in Calcium carbonate
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    (Original post by f.loco)
    I lost 8 STUPID marks

    Posted from TSR Mobile
    Every mark lost on a Salters paper is stupid. Never has there been anything that I didn't know, the same probably goes for you.

    3 mark questions have 3 mark points so no room for maneuver. Same goes for 1,2,3,4,5.... markers
    Every marking point has something underlined. You are wrong if you don't mention it
    Every question is the same every year but if you put last year's answer you are wrong
    If you put the right answer you are wrong.

    So dw bout it


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