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3 marksForces of Attraction

CAPE Chemistry Unit 1 · 2014 · Paper 2 · Question 4(a)(iii)

Carbon combines with hydrogen covalently to form ethane gas.

Use the VSEPR theory to deduce the arrangement of the orbitals and the bond angles around EACH carbon atom in a molecule of dichloroethane, CH₂ClCH₂Cl.

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Other parts of this question

  1. 4(a)(i)State the electronic configuration of carbon in its ground state using sp notation.[1 mark]
  2. 4(a)(ii)Account for the number and type of orbitals around EACH carbon atom in a molecule of ethane.[3 marks]
  3. 4(b)(i)State THREE assumptions of the kinetic theory as it pertains to ideal gases.[3 marks]
  4. 4(b)(ii)Under what conditions of temperature and pressure will a real gas deviate from ideal gas behaviour?[1 mark]
  5. 4(c)Calculate the relative molecular mass (Mᵣ) of the gas.[4 marks]

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