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    the mass spectrum of cyclohexanol (6 carbons are present) has a prominent peak at mass/charge ratio 82. suggest the molecular formula of the fragment which causes the peak..

    okay the markscheme put C6H10 (+)

    i dont understand .. the OH group of the alcohol cannot be fragmented by itself .. so how is this answer possible..
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    cyclohexanol is C6H12O
    so H20 has been removed/deflected
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    Hi, i would like to find out the amount in tons of ethyl alcohol and acetic acid in 70 tons of ethyl acetate. Please help. Thank you.

    C2H5OH + CH3COOH -----> C4H8O2 + H2O
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    (Original post by arjun2127)
    Hi, i would like to find out the amount in tons of ethyl alcohol and acetic acid in 70 tons of ethyl acetate. Please help. Thank you.

    C2H5OH + CH3COOH -----> C4H8O2 + H2O
    There are precisely 0 tons of ethyl alcohol and acetic acid in 70 tons of ethyl acetate ...

    ... ethyl acetate is all ethyl acetate (it's in the name)
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    (Original post by pondsteps)
    the mass spectrum of cyclohexanol (6 carbons are present) has a prominent peak at mass/charge ratio 82. suggest the molecular formula of the fragment which causes the peak..

    okay the markscheme put C6H10 (+)

    i dont understand .. the OH group of the alcohol cannot be fragmented by itself .. so how is this answer possible..
    In a mass spec machine loads of crazy things happen. You've got to remember that this is a really extreme environment we're talking about here.


    (Original post by arjun2127)
    Hi, i would like to find out the amount in tons of ethyl alcohol and acetic acid in 70 tons of ethyl acetate. Please help. Thank you.

    C2H5OH + CH3COOH -----> C4H8O2 + H2O
    You mean the amount after hydrolysing it with 100% yield?

    To do that you work out the number of moles of ethyl acetate (1tonne = 1000kg = 1000000g) then multiply by the Mr of acetic acid and by the Mr of ethanol.
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    (Original post by batoot)
    cyclohexanol is C6H12O
    so H20 has been removed/deflected
    oh yes.. thanks x but can the OH from an alcohol be fragmented in its own in the mass spectrum??
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    (Original post by Peroxidation)
    In a mass spec machine loads of crazy things happen. You've got to remember that this is a really extreme environment we're talking about here.




    You mean the amount after hydrolysing it with 100% yield?

    To do that you work out the number of moles of ethyl acetate (1tonne = 1000kg = 1000000g) then multiply by the Mr of acetic acid and by the Mr of ethanol.
    (Original post by Peroxidation)
    In a mass spec machine loads of crazy things happen. You've got to remember that this is a really extreme environment we're talking about here.




    You mean the amount after hydrolysing it with 100% yield?

    To do that you work out the number of moles of ethyl acetate (1tonne = 1000kg = 1000000g) then multiply by the Mr of acetic acid and by the Mr of ethanol.
    (Original post by Peroxidation)
    In a mass spec machine loads of crazy things happen. You've got to remember that this is a really extreme environment we're talking about here.




    You mean the amount after hydrolysing it with 100% yield?

    To do that you work out the number of moles of ethyl acetate (1tonne = 1000kg = 1000000g) then multiply by the Mr of acetic acid and by the Mr of ethanol.

    I just need to find the approx. amount. Is there any factor to multipy with?
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    Well, you'd need to know the yield. With that you could then multiply the amounts from the previous calculation by a decimal equivalent of the yield to find an approximate for the amounts formed.
 
 
 
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