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    (Original post by lahigueraxxx)
    Hey guys, not sure if we need to know this but I'm curious anyways:

    It says the units for planck's constant are J s what does the 's' stand for?
    seconds
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    (Original post by thomaarrss)
    when asked to draw a complex do we do arrows to the ligand or do the dotted lines/triangles to show the shape???
    Dotted / arrows
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    (Original post by Jmedi)
    seconds
    cheers!
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    Is [co(nh3)6]3+ dark brown or yellow??
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    (Original post by olivia7001)
    Is [co(nh3)6]3+ dark brown or yellow??
    brown
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    (Original post by olivia7001)
    Is [co(nh3)6]3+ dark brown or yellow??
    You don't need to know that

    Check specification page 60

    Only complex ion with nh3 you need to know is cu(nh3)4(h2o)2

    Which is deep blue
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    (Original post by olivia7001)
    Is [co(nh3)6]3+ dark brown or yellow??
    dark brown. its the 2+ that is pale yellow or pale brown. if left to air or reacted with h202 the 2+ complex is oxidised to 3+
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    think i've memorised all the necessary colours now, thanks all!
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    Thank you!yeahh, I just did this right now! Apparently there's a quicker way but I like this way much more
    Much appreciated!



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    (Original post by YoloSwagginz)
    You don't need to know that

    Check specification page 60

    Only complex ion with nh3 you need to know is cu(nh3)4(h2o)2

    Which is deep blue
    You do need to know that :/




    Posted from TSR Mobile
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    (Original post by olivia7001)
    Is [co(nh3)6]3+ dark brown or yellow??
    Dark brown

    [Co(NH3)6]2+ is yellow
    Someone correct me if I'm wrong


    Posted from TSR Mobile
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    (Original post by olivia7001)
    Is [co(nh3)6]3+ dark brown or yellow??
    2+ is straw coloured and it darkens in air. So brown
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    Do all-nighters actually work for people?? Has it worked for you in the past??
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    (Original post by Bloom77)
    You do need to know that :/




    Posted from TSR Mobile

    http://m.imgur.com/AauQULW

    Spec disagrees with you bud, but I guess we can just waste time memorizing stuff we don't need to know.
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    (Original post by YoloSwagginz)
    You don't need to know that

    Check specification page 60

    Only complex ion with nh3 you need to know is cu(nh3)4(h2o)2

    Which is deep blue
    i dont think so because i just did a paper where it asked you how to get a dark brown solution from a co2+ hexa-aqua complex

    http://filestore.aqa.org.uk/subjects...5-QP-JUN12.PDF[

    question 8
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    Which equations do people think will turn up tomorrow? Not colours, but the Cr2O7, MnO4, S2O8 ones.
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    (Original post by GO97)
    i dont think so because i just did a paper where it asked you how to get a dark brown solution from a co2+ hexa-aqua complex

    http://filestore.aqa.org.uk/subjects...5-QP-JUN12.PDF[

    question 8
    Lmfao I'm in the wrong thread haha I'm on ocr

    Going to peace out to the ocr spec lmfao
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    any one got quick method to remember those stupid colours
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    (Original post by Bloom77)
    Dark brown

    [Co(NH3)6]2+ is yellow
    Someone correct me if I'm wrong


    Posted from TSR Mobile
    yeah ur right, its weird though because they can call it pale yellow, pale brown or straw
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    (Original post by YoloSwagginz)
    Lmfao I'm in the wrong thread haha I'm on ocr

    Going to peace out to the ocr spec lmfao
    lmao better late than never
 
 
 
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