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    The missing question in c4 was the disadvantages of superconductors: they have to be used a very low temperatures


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    (Original post by HouseOfRichman)
    The missing question in c4 was the disadvantages of superconductors: they have to be used a very low temperatures


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    I included it
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    Could you just remind of question 3 on C5 I can't really picture it thanks so much!


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    Just physics left now!!!!!
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    I think I did really good in bio I'm converting my raw marks to ums and wow I'm shocked
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    (Original post by ellamoon_22)
    What is the boundaries for A* my grade all together I've worked out (pper 1,2 and coursework) is 81.75% of the total 400
    90% UMS is A*, so 360/400
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    (Original post by Meganward123)
    can someone please explain the concentration 6 marker?
    I worked out that there were 0.0025 moles, 0.0025/(20/1000) equals 0.125 mol/dm3
    I got that at first but i did the wrong liquids concentration so maybe u did that too?
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    I got the second QWC completely wrong because I used the volume of HCl used to get a pH of 1 (40cm3) not pH 7 (20cm3). But I still used the same equation and calculations, I just got a different answer. Sorry to bother, but how many marks do you think I would get?
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    (Original post by Str355ed)
    I got that at first but i did the wrong liquids concentration so maybe u did that too?
    That's exactly what I did then I had to change it for the correct one


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    (Original post by Vanilla Cupcake)
    90% UMS is A*, so 360/400
    Hopefully my grade is higher I've been doing my grades at worst possible so I don't get my hopes up lol
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    (Original post by artloser)
    I got the second QWC completely wrong because I used the volume of HCl used to get a pH of 1 (40cm3) not pH 7 (20cm3). But I still used the same equation and calculations, I just got a different answer. Sorry to bother, but how many marks do you think I would get?
    4/5 I did same thing as long as everything else is correct then highly think it will be 5
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    (Original post by ellamoon_22)
    4/5 I did same thing as long as everything else is correct then highly think it will be 5
    Thank you !
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    What did you guys get for the Mendeleev question?
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    (Original post by Missstargirl)
    What did you guys get for the Mendeleev question?
    Something about him arranging elements in a table and he noticed there were periodic pattern changes. Where there were gaps in the patterns he predicted the discovery of unknown elements and their unknown properties.

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    (Original post by Missstargirl)
    What did you guys get for the Mendeleev question?
    I said he arranged the elements in a table. He left gaps in the table where the element didn't fit the column properties. He helped predict the properties of undiscovered elements.
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    (Original post by HouseOfRichman)
    Could you just remind of question 3 on C5 I can't really picture it thanks so much!


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    SAME! i really don't remember :/
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    Can you write the concentration of acid to be the amount of H+ ions in the acid/solution?
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    Oh my God, I'm such a ****. I worked out 10/2 = 5 and I done 10 * 6?? = 60g ffs.
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    Sorry but you've missed like 10 marks for C6
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    (Original post by Meganward123)
    can someone please explain the concentration 6 marker?
    I worked out that there were 0.0025 moles, 0.0025/(20/1000) equals 0.125 mol/dm3
    I got that too 25/20 x 0.1= 0.125
 
 
 
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