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    How did everyone find it, I thought it was fairly difficulty?


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    definetely one of the harder papers
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    ye me also
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    (Original post by luisgr8)
    What was the ph and assumptions?
    I think I remember getting pH = 4.03
    Assumptions:
    [H30+] = [A-]
    The ionisation of the acid is negligible
    All the H+ comes from the acid
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    I hope the grade boundaries will be lower like 67 for an A.
 
 
 
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