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1 markAcidic and Basic Character of Organic Compounds

CAPE Chemistry Unit 2 · 2006 · Paper 2 · Question 1(b)(ii)

The reaction between H₂ and NO at 25 °C, 1 atm is: 2NO(g) + 2H₂(g) → N₂(g) + 2H₂O(l). The rate of reaction was monitored by measuring the volume of products formed.

Apart from volume measurement, state ONE other method of monitoring the rate of this reaction.

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Other parts of this question

  1. 1(a)(i)Predict quantitatively the effect on the rate of reaction when the concentration of H₂(g) is doubled, and give a reason.[2 marks]
  2. 1(a)(ii)Predict quantitatively the effect on the rate of reaction when the concentration of NO(g) is halved, and give a reason.[2 marks]
  3. 1(a)(iii)Predict quantitatively the effect on the rate of reaction when the concentrations of H₂(g) and NO(g) are both tripled.[1 mark]
  4. 1(b)(i)Sketch a suitable graph representing the data collected (volume of products formed versus time).[2 marks]
  5. 1(b)(iii)Suggest TWO precautions that should be taken when performing the experiment in (b)(ii).[2 marks]

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