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    (Original post by emsieMC)
    Also dos anyone get oxygen for that which element ionisation number thing? I can't remember is it was period 3 or 2 and I'm ******** myself in case it's sulphur instead, as it was the 7th ionisation energy right?
    Do you mean the question that gave you the table of ionisation energies?
    The answer was sulfur for that one
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    (Original post by Charco63)
    0.451/0.453 m3 but not sure that is right, checked it over and over and couldn't see why not

    And mass of 1065000 something grams
    Yeahh same

    I can't see why the anseer is 0.113
    I'm sure it's 0.451/453 tbh
    And I got that amount of grams too
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    Overall I'm VERY happy with how this exam went but I feel like it was harder than the others due to new types of questions. anything got an idea of grade boundaries?
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    Here is my mark scheme!
    http://www.thestudentroom.co.uk/show...5#post65233395
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    (Original post by Matt Johnson)
    When drawing the 3 isomers
    Position- just change the double bond so it's on a different carbon
    Functional group - change it from an alkene to n alkane, remove the double c bond
    What about for chain isomerism?
    That's the chain isomer
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    I got 0.113 for volume too
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    (Original post by Batmansdad)
    2,2,3-trimethypentane anyone?
    Was it not 2,2,4?
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    (Original post by Danny786)
    I got the exact same but it's wrong somehow - everyone else got 0.113


    Posted from TSR Mobile
    Did you change the 500 degrees into 773 Kelvin?
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    (Original post by Bloom77)
    Yeahh same

    I can't see why the anseer is 0.113
    I'm sure it's 0.451/453 tbh
    And I got that amount of grams too
    did you not do g/mr to get moles then do the ratio to get moles for gas
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    (Original post by RME11)
    Chain: 2-Methylpropene
    Position: But-2-ene
    Functional gr: Cyclobutane

    Yep, what you got
    Functional group is always a cyclo shape
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    (Original post by newt1)
    you could say oxygen deviates for the question about which element deviates the trend in period 3
    I talked about aluminium deviating
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    (Original post by emsieMC)
    Also dos anyone get oxygen for that which element ionisation number thing? I can't remember is it was period 3 or 2 and I'm ******** myself in case it's sulphur instead, as it was the 7th ionisation energy right?
    Was sulfur mate, the jump was on the 7th electron removed and sulfur only has 6 in its valence shell.
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    oh no it was period 3! I hate it when I lose marks because I was being silly not because I didn't know the answer
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    (Original post by emsieMC)
    So....I got it right? yay! I wasn't sure because I know the shape and it only had one electron pair, but I didn't know if it affected both angles by 2.5/2.
    You can have either, and that is correct, I don't know why people are saying its 3 bonding pairs and 1 lone pair? That is absolute trash.
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    Wasn't the formula for that molecule 2,2,4 trimethyl then whatever molecule it was?


    Posted from TSR Mobile
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    what exam is this?


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    (Original post by Bloom77)
    I talked about aluminium deviating
    The question insinuated you could choose either one, I'm sure you'll be fine both correct answers.
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    (Original post by Ultracrepidarian)
    did you not do g/mr to get moles then do the ratio to get moles for gas
    i also got 0.451 and i think its right
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    (Original post by Danny786)
    Wasn't the formula for that molecule 2,2,4 trimethyl then whatever molecule it was?


    Posted from TSR Mobile
    Agreed
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    (Original post by selena0101)
    What did u guys get for why do vdw forces exist
    I talked about polar molecules, charge clouds, and the set up of temporary dipoles
 
 
 
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