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    (Original post by krisshP)
    In Jan 2013 q4ci and q4d I don't understand how you get the marks scheme answers. Can somebody please explain?

    Thanks
    and uh give me a second to think about how I can explain 4ci
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    does anyone have any good notes for F332? i cant find any
    much appreciated )))
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    (Original post by Aaaaa11111)
    does anyone have any good notes for F332? i cant find any
    much appreciated )))
    Here are some notes made by the TSR user RebeccaTenney.
    Attached Files
  1. File Type: docx Elements from the Sea Notes.docx (368.8 KB, 161 views)
  2. File Type: docx Polymer Revolution Notes.docx (298.4 KB, 205 views)
  3. File Type: docx The Atmosphere Notes.docx (53.6 KB, 138 views)
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    Look at Jan 2013 q5d. Why don't OCR accept frequency, why just energy? They usually accept talking about frequency and energy. What's up with them?
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    (Original post by nukethemaly)
    and uh give me a second to think about how I can explain 4ci
    Can you now explain it please?
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    (Original post by krisshP)
    Look at Jan 2013 q5d. Why don't OCR accept frequency, why just energy? They usually accept talking about frequency and energy. What's up with them?
    Lol it's OCR dude, that's what they do

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    (Original post by krisshP)
    Can you now explain it please?
    I'm not sure how to!

    You're better off asking someone else how to I'm sorry dude
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    (Original post by krisshP)
    Can you now explain it please?
    I'm doing the Jan 2013 paper right now, and this is ridiculous, they've literally picked up questions WORD TO WORD, even calculations from the old spec past papers. I'm just sitting here going "are u kidding me"
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    (Original post by nukethemaly)
    I'm doing the Jan 2013 paper right now, and this is ridiculous, they've literally picked up questions WORD TO WORD, even calculations from the old spec past papers. I'm just sitting here going "are u kidding me"
    Do you mean they have repeated old spec questions in new papers?!
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    (Original post by ambbs)
    Do you mean they have repeated old spec questions in new papers?!
    Hahaha you sound happy. Yeah they have just a few though. I doubt they'd do it again especially during summer when more than half the country is doing it.
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    (Original post by nukethemaly)
    Hahaha you sound happy. Yeah they have just a few though. I doubt they'd do it again especially during summer when more than half the country is doing it.
    It just surprised me that they actually did that! I suppose there's only so much content though that stuff's bound to be repeated (although right now during revision it feels like there's an endless amount of content!) Might glance over some of the old spec papers tomorrow then
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    (Original post by nukethemaly)
    I'm doing the Jan 2013 paper right now, and this is ridiculous, they've literally picked up questions WORD TO WORD, even calculations from the old spec past papers. I'm just sitting here going "are u kidding me"
    I'm doing each paper twice and finishing these papers soon, then I'll go over some for a third time, then if there's time, I'll see the old spec ones, so I'm not there yet! Congrats, you finished a number of papers and so are in a good positions
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    Can anybody explain how to do January 2013 q4ci please?
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    WTF I opened a legacy zip file, opened a question paper and there's chemistry by design and chemistry of materials. Where's F332 legacy papers?
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    (Original post by krisshP)
    Can anybody explain how to do January 2013 q4ci please?
    Awh krishhy mate

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    Why do instantaneous dipole-induced dipole forces strengthen when the atomic radius/electron shielding gets higher?


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    (Original post by AGKhan)
    Why do instantaneous dipole-induced dipole forces strengthen when the atomic radius/electron shielding gets higher?


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    As the atomic radius increases, the atom has more electrons (which causes the increase in radius). As a result of the atom having more electrons, it can produce stronger (more is not accepted in f332 mark schemes) intermolecular bonds (i.e instantaneous dipole-induced dipole forces). The same goes for electron shielding, as atomic radius and electron shielding increase with each other if you get me.
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    (Original post by nukethemaly)
    .....
    Hey how do you know that ammonia NH3 is very soluble in water? Is it because N is highly electronegative, so N has a Delta - charge and H has a + and there's a lone pair on N, so hydrogen bond can form between water and ammonia NH3?

    Thanks
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    (Original post by krisshP)
    Hey how do you know that ammonia NH3 is very soluble in water? Is it because N is highly electronegative, so N has a Delta - charge and H has a + and there's a lone pair on N, so hydrogen bond can form between water and ammonia NH3?

    Thanks
    NH3 is highly soluble in water because:

    N is a small and highly electronegative atom causing partial charges on N and H
    Ammonia contains a lone pair on the N, a condition required for hydrogen bonding
    Therefore H bonds can be formed between ammonia and water so it is soluble

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    (Original post by MintCrepz)
    NH3 is highly soluble in water because:

    N is a small and highly electronegative atom causing partial charges on N and H
    Ammonia contains a lone pair on the N, a condition required for hydrogen bonding
    Therefore H bonds can be formed between ammonia and water so it is soluble

    Thanks, I get it now
 
 
 
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