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    For the 2 variables I said to keep constant the amount of sodium thiosulfate and hydrochloric acid is this right?
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    (Original post by Sarkub Don)
    For the 2 variables I said to keep constant the amount of sodium thiosulfate and hydrochloric acid is this right?
    They usually want students to be specific and say VOLUME, but you'll probably get 1 mark at least


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    (Original post by z1820)
    They usually want students to be specific and say VOLUME, but you'll probably get 1 mark at least


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    Okay thanks how did you find the exam?
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    (Original post by Sarkub Don)
    Okay thanks how did you find the exam?
    I'm not too sure, didn't like the 6 marker on unit 2! And think I messed up the calculations on C3😂 how about you?


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    (Original post by z1820)
    I'm not too sure, didn't like the 6 marker on unit 2! And think I messed up the calculations on C3😂 how about you?


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    Same but i dont think that they were very hard jus stupid mistakes here and there what are you looking to do next year sixth form or college and what will you be studying?
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    (Original post by Sarkub Don)
    For the 2 variables I said to keep constant the amount of sodium thiosulfate and hydrochloric acid is this right?
    Yeah I wrote that too
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    (Original post by Sarkub Don)
    Same but i dont think that they were very hard jus stupid mistakes here and there what are you looking to do next year sixth form or college and what will you be studying?
    Yeah, I'm hoping to do Biology Chemistry Maths & Psychology, what about you?


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    would concentration of sodium thiosulfate and concentration of acid be correct?
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    Making an Unoffical Mark scheme:

    http://www.thestudentroom.co.uk/show...1#post65813451

    Check it out.
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    (Original post by z1820)
    Yeah, I'm hoping to do Biology Chemistry Maths & Psychology, what about you?


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    I am hoping to do a levels and study biology,chemistry,maths and business and good luck with your a levels.
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    (Original post by dh12345)
    would concentration of sodium thiosulfate and concentration of acid be correct?
    It's volume for sodium thiosulfate and concentration of HYDROCHLORIC acid (you still might get the mark). I know for a fact they won't accept amount of sodium thiosulfate (which I put).
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    (Original post by Jamie Vardy)
    It's volume for sodium thiosulfate and concentration of HYDROCHLORIC acid (you still might get the mark). I know for a fact they won't accept amount of sodium thiosulfate (which I put).
    no i just looked up the experiment hopefully they will accept

    1) concetration of sodium thiosulphate solution
    2) concentration of hydrochloric acid

    thank **** for that
 
 
 
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