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  1. A

    S1, how was it? My answers, please put yours to compare.

    I left the vein diagram too ... And i didn't see they asked for SD in 4a ... :/
  2. A

    Chemistry Unit 6B 15.05.2013!! June 2013

    I said the colour change was from colourless to pale pink . I wrote colorimetry aswell For error thing it was 0.x something. For the nmr they said there were 6 peaks Solvent extraction i said open the tap to allow the two layers to separate, didn't specify which one and then again put the...
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    Chemistry Unit 6B 15.05.2013!! June 2013

    Do you think our answers are correct ? It makes sense as there will be no splitting on CH3 group I didn't show the OH because they only wanted you to the side chain
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    Chemistry Unit 6B 15.05.2013!! June 2013

    I said pipette because it can read to a precision of 0.1 and the value was given like this i think 24.0, i can't remember the value but the concept is the same. And it can read to a precision of 0.1. Usually for burette you would use it if it is given like this 24.00
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    Chemistry Unit 6B 15.05.2013!! June 2013

    i am not sure about the side chain but i I wrote CH2CH2COCH3. Most probably incorrect
  6. A

    Chemistry Unit 6B 15.05.2013!! June 2013

    Not as hard as this one, when i did the past paper for the 2011 i got above A but for the one we did today i don't think thats going to happen :|
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    Chemistry Unit 6B 15.05.2013!! June 2013

    I think its going to be lower most probably 36 or 37. If look at june 2011 the boundary for A* was 34, that was the lowest ever they had and that paper was soo much easier than this
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    Chemistry Unit 6B 15.05.2013!! June 2013

    For the nickel question I think it was [NiCL4]2- . For the very last question it is recrystillisation
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    Chemistry Unit 6B 15.05.2013!! June 2013

    I might have made a mistake then when i calculated the gradient :| ... Wow more mistakes are showing up -.-
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    Chemistry Unit 6B 15.05.2013!! June 2013

    what were the orders supposed to be ? So many had different answers, some of us got half orders. I got 1/2 order for glucose and sulphuric acid and for Kmno4 as 1st order
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    Chemistry Unit 6B 15.05.2013!! June 2013

    Hahaha the nmr was the worst. For the activation energy i got +8.23 x 10-3 J mol-1 K-1 , 10-3 or 10-4 i can't remember but something like that , and the nickle complex in excess ammonia forms blue solution
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    Chemistry Unit 6B 15.05.2013!! June 2013

    It was really difficult. None of the people in our centre said it was easy... :(
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    Biology Unit 6B! How was it!?

    Question number 2 ... thats where i lost most of my marks -.- . I guess i found the median correctly but drew the wrong type of graph i hope they give marks for the labelling. Oh and for the conclusion on Mann Whitney test, that one apparently it was supposed to be the null hypothesis is...
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    The spirometer meter question was quite good. They wanted to test the breathing rate while...

    The spirometer meter question was quite good. They wanted to test the breathing rate while sitting on a chair and lying down. I said the control variables will be the surround temperature and mass of soda lime
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  15. A

    Biology Unit 6B! How was it!?

    How were we supposed to draw the graph ? I messed it up and drew a box plot according to S1 because it was median, while others drew bar graph.
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