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    (Original post by oweneagle)
    Went through a paper with my teacher and got the yield to be 79.2%
    It couldn't have been that
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    (Original post by Batmansdad)
    For the last question would u have to write it in grams of kg
    It didn't specify, so either - I did both.
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    how many marks would i drop for the percentage yield question? i did 1090/2278.56 x 100 = 47.8%
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    Will it matter to my grade if I post pics of the questions on here, went to my teacher afterwards and saw the calculation questions for the section B
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    Anyone else get 16.6 for the %Yield question?
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    (Original post by MacRevision)
    Anyone else get 16.6 for the %Yield question?
    Nope
    It was 49.30%


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    (Original post by oweneagle)
    Will it matter to my grade if I post pics of the questions on here, went to my teacher afterwards and saw the calculation questions for the section B
    No it won't affect your grade at all, post them!
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    (Original post by Louisss)
    how many marks would i drop for the percentage yield question? i did 1090/2278.56 x 100 = 47.8%
    Possibly 2 marks


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    (Original post by Louisss)
    No it won't affect your grade at all, post them!
    Like I found the percentage yield to be 25% but then went through it and got 79% I'm so confused
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    (Original post by oweneagle)
    Like I found the percentage yield to be 25% but then went through it and got 79% I'm so confused
    your teachers btec
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    (Original post by User2334541)
    Couldn't you argue that it was Argon? Argon has 8 electrons in it's outer shell and when 6 are ionised and removed, it sees a huge spike in ionisation energies as the next two being removed are from the 3s orbital?
    I hope this helps clarify anything
    I wasn't sure of the answer either
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    (Original post by oweneagle)
    Will it matter to my grade if I post pics of the questions on here, went to my teacher afterwards and saw the calculation questions for the section B
    Please post them!!!
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    for the balancing equation questions, if you got the other products right but they aren't balanced, do you get 1/2?
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    yes I got 49.3 would I get full marks?
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    How did everyone find the exam overall? Harder or easier than past papers?
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    (Original post by oweneagle)
    Will it matter to my grade if I post pics of the questions on here, went to my teacher afterwards and saw the calculation questions for the section B
    Please please post want to see my marks


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    (Original post by RME11)
    The conc & vol of the solution was 5moldm-3 & 3m3, You had to change the 3m3 into dm3 first so you ended up with 3000dm3

    moles = conc X vol = 5*3000 = 15,000 moles h3po4

    Ratio P4O10 to H3PO4 was 1:4 therefore 15000 moles h3po4 = 3750 moles P4O10

    Mass = moles * mr = 3750 * ((31*4)+(10*16)) = 1065000g = 1065KG.
    Wouldn't it be 1.065 Kg?
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    (Original post by alevez2ez)
    How did you guys fail last year? The foundation Chemistry paper (AQA paper 1) was the easiest paper from 2011-2015.

    Did you let the stress get to you or what?
    Only a certain number of people get the top grades. if its easy grade boundaries will raise. you're not a very logical thinker....
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    (Original post by emsieMC)
    thing is I'm wearing out of date contact lenses so they're not quite clear. I misread the period 3 as period 2 . Can I do anything about this?
    I somehow doubt it.. That should have been addressed before you went in, not just when you get a question wrong
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    (Original post by rbkbball)
    Only a certain number of people get the top grades. if its easy grade boundaries will raise. you're not a very logical thinker....
    It's obvious that the grade boundaries would rise


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