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2 marksThe Mole Concept

CAPE Chemistry Unit 1 · 2010 · Paper 2 · Question 1(b)(i)

Ammonia can be produced by heating calcium oxide with ammonium chloride. The two other products are calcium chloride and water.

Write a balanced chemical equation for the reaction between calcium oxide and ammonium chloride.

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Other parts of this question

  1. 1(a)State the types of bonds (intra-molecular and inter-molecular) that exist in liquid ammonia.[2 marks]
  2. 1(b)(ii)Calculate the mass of ammonium chloride needed to produce 1 dm³ of ammonia at RTP (room temperature and pressure). (Molar volume = 24 dm³ at RTP)[2 marks]
  3. 1(c)(i)Under which of the following sets of conditions, I, II or III, would the deviation be LEAST?[1 mark]
  4. 1(c)(ii)State TWO assumptions of the kinetic theory as it pertains to ideal gases.[2 marks]
  5. 1(c)(iii)Which assumption of the kinetic theory as it pertains to ideal gases would MOST likely account for your answer to (c) (i) above?[1 mark]
  6. 1(d)Describe an experiment that would determine the concentration of the aqueous ammonia.[5 marks]

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