Hey there! Sign in to join this conversationNew here? Join for free
x Turn on thread page Beta

The 2010, Honorary Member Welcoming, Undergraduate Degree Results Chat Thread Mk. IV watch

    Offline

    14
    ReputationRep:
    Same same!
    Offline

    2
    ReputationRep:
    (Original post by maxfire)
    NMR? Enlighten me woman. Is it a bad thing I don't know what that is?
    Nuclear magnetic resonance spectroscopy...it's a way of finding out crap about a molecule using the fact that a nucleus with an odd number of nucleons will have a resultant spin so it creates a teeny magnetic field and then they see how that reacts in a larger magnetic field.
    Or something along those lines.

    That sounds so physicsy despite the fact it's chem.
    Offline

    2
    ReputationRep:
    Offline

    2
    ReputationRep:
    (Original post by Smeh)
    Nuclear magnetic resonance spectroscopy...it's a way of finding out crap about a molecule using the fact that a nucleus with an odd number of nucleons will have a resultant spin so it creates a teeny magnetic field and then they see how that reacts in a larger magnetic field.
    Or something along those lines.

    That sounds so physicsy despite the fact it's chem.
    :lolwut: Kinda sounds interesting. I wish I had the patience for chemistry.
    Offline

    3
    (Original post by Smeh)
    Nuclear magnetic resonance spectroscopy...it's a way of finding out crap about a molecule using the fact that a nucleus with an odd number of nucleons will have a resultant spin so it creates a teeny magnetic field and then they see how that reacts in a larger magnetic field.
    Or something along those lines.

    That sounds so physicsy despite the fact it's chem.
    That sounds pretty correct to me. I don't need to know it in that detail for my spec but I looked it up during revision anyway.

    What don't you understand about it?
    Offline

    2
    ReputationRep:
    (Original post by maxfire)
    :rofl:
    My physics teacher made a sexist racist joke today.
    Being the only girl in the class I probably should've stood up for my sex.
    Instead I lol'd.
    Does that make me a bad person?
    Offline

    2
    ReputationRep:
    (Original post by Loz17)
    That sounds pretty correct to me. I don't need to know it in that detail for my spec but I looked it up during revision anyway.

    What don't you understand about it?
    I get what it is and how it works.
    It's just the analysis of the data that throws me. Like I always get the different hydrogen environments wrong and stuff like that.
    We have to do carbon NMR too for the new spec which is even worse.
    Offline

    14
    ReputationRep:
    (Original post by Smeh)
    :rofl:
    My physics teacher made a sexist racist joke today.
    Being the only girl in the class I probably should've stood up for my sex.
    Instead I lol'd.
    Does that make me a bad person?
    It means you got a good sense of humour :awesome:
    Offline

    2
    ReputationRep:
    (Original post by Smeh)
    :rofl:
    My physics teacher made a sexist racist joke today.
    Being the only girl in the class I probably should've stood up for my sex.
    Instead I lol'd.
    Does that make me a bad person?
    It makes you a terrible person :rofl:
    What was it though? I'm curious.
    Offline

    3
    (Original post by Smeh)
    I get what it is and how it works.
    It's just the analysis of the data that throws me. Like I always get the different hydrogen environments wrong and stuff like that.
    We have to do carbon NMR too for the new spec which is even worse.
    I can't help with C13 unfortuanatly, but basically take ethanol for example, in terms of environments and ratios. Ethanol is CH3-CH2-OH. Different environments are basically these split sections of a molecule, where the protons are seperated by a different bond (in this case by the C-C bond. Another example is CH3 and O-CH3, they would count as different environments if that makes sense?)

    The CH3 has 3 protons, so will have a relative peak 3 times the size, CH2 has 2 protons, so relative peak will be double the size and OH has 1 proton, so peak will be normal. Proton ratio will be 3:2:1.

    Try this page. It has links to Carbon and proton NMR
    Offline

    14
    ReputationRep:
    night *****es :daydreaming:
    Offline

    2
    ReputationRep:
    (Original post by maxfire)
    It makes you a terrible person :rofl:
    What was it though? I'm curious.
    Can't really remember but someone in my class was like "yeah we should kidnap some japanese people, lock them in the basement and get them to do the exam for us"
    Then someone else was like "Yeah we should get some japanese women :sexface:"
    Then my teacher was like "psshh then you'd fail, this is a physics exam we're talking about"
    ...Something like that anyway.
    Offline

    2
    ReputationRep:
    Hey guise, what do you reckon would make a better avatar:


    or

    or
    Offline

    2
    ReputationRep:
    night xx
    Offline

    2
    ReputationRep:
    (Original post by Smeh)
    Can't really remember but someone in my class was like "yeah we should kidnap some japanese people, lock them in the basement and get them to do the exam for us"
    Then someone else was like "Yeah we should get some japanese women :sexface:"
    Then my teacher was like "psshh then you'd fail, this is a physics exam we're talking about"
    ...Something like that anyway.
    :rofl3:
    your teacher sounds like a right laugh.
    Offline

    2
    ReputationRep:
    (Original post by Loz17)
    I can't help with C13 unfortuanatly, but basically take ethanol for example, in terms of environments and ratios. Ethanol is CH3-CH2-OH. Different environments are basically these split sections of a molecule, where the protons are seperated by a different bond (in this case by the C-C bond. Another example is CH3 and O-CH3, they would count as different environments if that makes sense?)

    The CH3 has 3 protons, so will have a relative peak 3 times the size, CH2 has 2 protons, so relative peak will be double the size and OH has 1 proton, so peak will be normal. Proton ratio will be 3:2:1.

    Try this page. It has links to Carbon and proton NMR
    Thank you! :hugs:
    This is a godsend! So much clearer than the book.
    Offline

    3
    Middle one max.

    And no probs Smeh
    Offline

    2
    ReputationRep:
    (Original post by maxfire)
    :rofl3:
    your teacher sounds like a right laugh.
    Yeah he is pretty cool with letting us do pretty much what we want.
    Not very good at planning lessons though...
    And the second eye is so cool.
    Offline

    2
    ReputationRep:
    (Original post by Smeh)
    Yeah he is pretty cool with letting us do pretty much what we want.
    Not very good at planning lessons though...
    And the second eye is so cool.
    (Original post by Loz17)
    Middle one max.

    And no probs Smeh
    How d'ya like me now, *****es? :mmm:
    Offline

    3
    Very nice :yep:
 
 
 
Poll
Are you going to a festival?
Useful resources
AtCTs

Ask the Community Team

Got a question about the site content or our moderation? Ask here.

Welcome Lounge

Welcome Lounge

We're a friendly bunch. Post here if you're new to TSR.

Groups associated with this forum:

View associated groups

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

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