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 2016 DSE cut-off     5** 操 Past Paper 正確方法    通識由0到5**經歷及技巧分享    5**讀書態度及技巧分享    6招讓 DSE 變得輕鬆
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2016年6月9日

DSE00 MOCK Paper 開放下載!!!






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6 則留言:

  1. hello i wanna ask Q34 , sulphur molecule is S8 while Oxygen molecule is O2
    why one mole of sulphur and one mole of oxygen contain the same number of atoms ?

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    1. Thanks for your question

      2g of S8= 2/(32x8)0.007815 mol
      0.007815 mol of S8 contain = 0.007815 x 8 =0.0625 mol of S atom

      1 g of O2 = 1/(16x2) =0.03125 mol
      0.03125 mol of O2 contain = 0.03125 x 2 = 0.0625 mol of O atom


      So, they both contain 0.0625 mol of atom and (2) is correct.

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  2. 想問下有冇Cut-Off ?

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    1. 有呀,呢個係我們一班導師定出來的cutoff 線

      5** 92%
      5* 85%
      5 75%
      4 65%
      3 55%

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  3. i dont hae facebookcan you tellme the password?

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