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AQA Chemistry Module 1 Exam watch

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    HOw did you all do, i thought it was pretty ok, not too hard, some dodgy questions.

    what about you all?
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    Found it very easy. Alot easier than Biology yesterday anyway
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    Yeah pretty easy in general, so annoyed that i got the Electron configuration of Cu wrong though, its 4s13d10 apparently, not 4s23d9 !
    but apart from that plain sailings ....
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    Sup?

    what did you get for the question about NaOH and HCL where you had to work out moles of unreacted NaOH etc...

    i found the moles of NaOH - 0.05 i think
    then of HCL-it gave volume and concentration so simple..cant remember value
    the moles of unreacted NaOH was the moles of HCL as NaOH+HCL is a 1:1 reaction.
    so reacted moles of NaOH was 0.05-how much reacted with HCL...

    i just cant remember the final value i got, i think u had to work out mass of somat? ...any remember?

    i think i got about 700+ kelvins for a temp using pV=nRT

    i wasn't too sure about the small peak on the mass spectrometer..i said it was Cu2+, n reason...2 é were knocked off it, 2nd ionisation..
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    Cant really remember, but that dont ring a bell lol
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    The mass you had to work out at the end came to 2.22g
    The PV=NRT question answer was = 409 k (im almost certain it is sorry)
    Yes the small peak was because of a Cu2+ ion but you had to explain that it was due to the m/z ratio being = 63/2 = 31.5 and the reason it was so small was because there was very little abundance of it i think.

    Chris
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    Well i didn't put the stuff about the CU2+ ion. but i did put there was very little abundance, cant remember for the gas equation. But should be right triple checked it!
 
 
 

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