All Leaving Cert Chemistry posts
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    Chemistry 2016 ballet

    That paper was honestly so hard. Did anyone else find it hard ???

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      laylalushni

      i found some of the questions hard and detailed, but overall compared to last years it was lovely. just hated Q2 and some calculations confused me

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      ballet

      Not sure if better than 2015 , found it bad

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      MAYYAMIMI

      OH{-} + 4 ClO{-} + S2O3{2-} = 4 Cl{-} + 2 SO4{2-} + H{+}

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      MAYYAMIMI

      Answer to oxidation question what I got

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      MAYYAMIMI

      ClO- oxidizing agent

      S2O3 reducing agent

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      MAYYAMIMI

      Reduction gain of electrons.

      Reduction decrease in oxidation number

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      MAYYAMIMI

      For q11 I wrote sulphurs is in excess

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      ddp.cronin

      yes sulfer in excess

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      Longbottoms

      What did people get for the KC value in question 7?

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      louisoc

      Kc value was 196000

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      Longbottoms

      Brilliant!

      I got that

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      Soniclouise

      it was awful I hated it :( secondary mostly to a lack of doing the experiments and being a tactile learner - should have known

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      646496

      I got 6% for the concentration of ethanoic acid which from reading answers online seems to be wrong,will I get 0 even if my calculations were the correct method?

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      Soniclouise

      no they will give you you marks for the method maybe obly 3 but its something

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      Insa333

      I messed up in a place where I wrote 0.8 instead of 0.08. This meant my other answers further down were also affected by this. How many marks will I lose for this? Will I only be marked down for the initial slip or will marks be taken away from the other answers as well?

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      Me

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