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    Chemistry practical 34 oct/nov important

    I got very similar readings to you, but I assumed the last one as I was out of time. My fifth reading was in the early 30s. What do u think how many marks will I get on the table? And what about the question that asked about the effect on the reaction time if the concentration of sodium...
  2. A

    Chemistry practical 34 oct/nov important

    Secondly, there was a question asking that what will be the effect on the reaction time if the concentration of sodium thiosulfate used is 0.25 (instead of 0.50)?
  3. A

    Chemistry practical 34 oct/nov important

    Guys, please tell what readings were you getting (in seconds) for the blue/black colour to appear. This is very important because in June 2003 paper, six marks were allocated only for the accuracy of readings.
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