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    (Original post by Lutski)
    This question doesn't seem to work. The Faraday Constant is 96485 A s / mol, and by research I found that the amount of aluminium they used at the top of the Washington tower is 2835g which is equal to 104.6 moles Al.

    (Moles * Faraday's Constant) / Amps
    = (104.6 * 96485) / 2 = 5046165.5 seconds
    5046165.5 seconds => 58.4 days.

    It's wrong...
    You're forgetting something rather important

    Hint:
    Spoiler:
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    Consider the charge change for Aluminium...
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    Who is on, or has done Rg?


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    (Original post by Llewellyn)
    You're forgetting something rather important
    Please expand, I have literally no idea.
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    Silver, help?! Just one more hint... =/
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    (Original post by llewellyn)
    you're forgetting something rather important

    hint:
    Spoiler:
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    consider the charge change for aluminium...
    do you mean al 3+ ion
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    (Original post by david2457)
    Who is on, or has done Rg?


    This was posted from The Student Room's iPhone/iPad App
    The 53 is the best clue you'll get all night.


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    so who is the fellow on the Rg image
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    (Original post by Lutski)
    Please expand, I have literally no idea.
    In Al203, each Al ion has a +3 charge, so for each to become atoms (0 charge), how many electrons must each gain?
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    (Original post by Silverland)
    so who is the fellow on the Rg image
    Henry


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    So... Who's done silver?


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    (Original post by Llewellyn)
    In Al203, each Al ion has a +3 charge, so for each to become atoms (0 charge), how many electrons must each gain?
    Oh, so Al must gain 3 electrons. I just multiply the moles of Al by three, then?
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    for Rg the person is Henry Moseley... that all I got
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    (Original post by vzapata)
    for Rg the person is Henry Moseley... that all I got
    Well what is he known for? How do you think this could this tie in with the numbers?
    • PS Helper
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    PS Helper
    (Original post by Lutski)
    Oh, so Al must gain 3 electrons. I just multiply the moles of Al by three, then?
    Not quite.

    Look at your working.

    The Faraday equation is A s per mol. You have 3 moles.
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    I don't know anything about x-ray spectra D:
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    (Original post by Couldxbe)
    Not quite.

    Look at your working.

    The Faraday equation is A s per mol. You have 3 moles.
    I multiplied by three and it worked, thanks! :P
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    What is the operator and how does it work?


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    in silver, I have to answer the reaction? if no, what? I dont understand how to answer!
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    (Original post by david2457)
    What is the operator and how does it work?


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    It's a product. (multiply)
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    any hints for rg, other than who he is?
 
 
 
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