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Transcription of this question: 3.This question is about sodium and its compounds.(a) Plot the relative values of the first four ionization energies of sodium.234Successive ionization(b)(c)Outline why the alkali metals (group 1) have similar chemical properties.Describe the structure and bonding in solid sodium oxide.[2](d)The Born-Haber cycle for sodium oxide is shown (not to scale).2Na• (g) + 02- (g)2Na• (g) + O (g)2Na (g) + O (g)2Na (g) + (g)Na20 sLatticeenthalpy0)Calculate values for the following changes using section 8 of the data booklet.AH (Na) = 107 kJ mor(0) = 249kJ mort702 (g) OFNa(s)(ii)The standard enthalpy of formation of sodium oxide is A114 kJ mori. Determinethe lattice enthalpy of sodium oxide, in kJmol-1, using section 8 of the databooklet and your answers to (d)(i).(If you did not get answers to (d)(i), use +850kJmol-1 and +600kJ morirespectively, but these are not the correct answers.)[2][2](iii)Justify why K20 has a lower lattice enthalpy (absolute value) than Nap.(e) Write equations for the separate reactions of solid sodium oxide and solidphosphorus(V) oxide with excess water and differentiate between the solutions formed.Sodium oxide, Nap:Phosphorus(V) oxide, Paolo’Differentiation:[3](f)Sodium peroxide, Na202, is formed by the reaction of sodium oxide with oxygen.2Nap (s) + 02(g) (s)Calculate the percentage yield of sodium peroxide if 5.00g of sodium oxide produces5.50g of sodium peroxide.[2](g)Sodium peroxide is used in diving apparatus to produce oxygen from carbon dioxide.0)2NaP2 (s) + 2C02(g) 2NazC03(s) + 02(g)Determine the enthalpy change, AH, in kJ, for this reaction using data from thetable and section 12 of the data booklet.Napa (s)NazC03(s)åH, I kJ mori-510.9-1130.7(ii)Outline why bond enthalpy values are not valid in calculations such as that in (g)(i).(h)O)An allotrope of molecular oxygen is ozone. Compare, giving a reason, the bondenthalpies of the O to O bonds in 02 and 03.Outline why a real gas differs from ideal behaviour at bw temperature and high pressure.The reaction of sodium peroxide with excess water produces hydrogen peroxide andone other sodium compound. Suggest the formula of this compound.[1](k) State the oxidation number of carbon in sodium carbonate, Na2C03.

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