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    I have mine coming up this Wednesday...

    Tips and helpful hints on the perfect way to carry out a titration is welcome.
    I'm pretty sure I'm allowed to disclose this because it was in the instructions anyway...
    'Prepare solution of unknown carbonate
    carry out titration of this solution'

    I'm guessing they'll give me the instructions on how to prepare the solution...

    What questions do you think might they ask? Would I be asked to identify the carbonate? (I'm stupid OK this doesn't seem obvious to me)
    Also anything like health and safety issues (I'm guessing it'll be chemicals getting into eye & stuff for this), and reasons why a chemical isn't measured using volumetric equipment (its in excess is what I read in answers but I just don't get why).

    Thanks in advance =)
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    Iam glad and happy and thank god that iam doing the old syllabus
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    well, i dont do ocr but judging from your information, i am not sure if they will tell you how to make the solution but its better to know it beforehand...you weigh the carbonate(the mass you need from calculation) then dissolve all of this in a clean beaker(the 25ml kind) usually. with distilled water and stir with a glass rod. pour into volumetric, "wash" the beaker and glass rod 3 times with distilled water and pour this into the volumetric to ensure no wastage of carbonate...add distilled water to the mark.
    the test for carbonate is add dil acid and pass gas through lime water, white ppte shows presence of carbonate...
    for safety just say use gloves and goggles...
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    Cheers shungun

    Also if i may ask, do you know any good websites or books etc. that give helpful hints and information on doing practicals because sometimes I feel I am really useless at them and I do all three sciences so I really wish I was more confident in them!

    Thanks x
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    cheers, i do all three sciences and i love them!!!:love:
    well for chemistry try http://www.chemguide.co.uk/
    but i doubt they have anything for practicals...
    wait
    i found 2 more websites for practicals:
    http://www.creative-chemistry.org.uk.../practical.htm
    http://www.practicalchemistry.org/

    hope it helps you...:rolleyes:
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    hey, yeah mines coming up!! how did yours goo??? what came up and what was in the paper?? got any tips?
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    Yup sciences are awesome, just wish i was better at doing practicals...ah well i'm working on it. Not gonna happen overnight, although I wish it would!
    Thanks again! x
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    the quanative and qualitive tests are fine - i've done 2 for each, its the evaluative that really get you! had mine today, it was a killer!
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    Im sooo screwed for chem.. i got eco on same day... what do i do...
    ps shugan thanks for the papers link you posted..
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    no problem...you will do fine...:rolleyes:
 
 
 

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