Choose the thermochemical equation that best illustrates ΔH°f (enthalpy of formations) for Li2SO4. A) 2 Li + (aq) + SO42 - (aq) → Li2SO4 (aq) B) 2 Li (s) + 1/8 S8 (s, rhombic) + 2 O2 (g) → Li2SO4 (s) C) Li2SO4 (aq) → 2 Li + (aq) + SO4 2 - (aq) D) 8 Li2SO4 (s) → 16 Li (s) + S8 (s, rhombic) + 16 O2 (g) E) 16 Li (s) + S8 (s, rhombic) + 16 O2 (g) → 8 Li2SO4 (s)

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Chemistry

Madilynn Rocha

29 March, 21:57

Choose the thermochemical equation that best illustrates ΔH°f (enthalpy of formations) for Li2SO4. A) 2 Li + (aq) + SO42 - (aq) → Li2SO4 (aq) B) 2 Li (s) + 1/8 S8 (s, rhombic) + 2 O2 (g) → Li2SO4 (s) C) Li2SO4 (aq) → 2 Li + (aq) + SO4 2 - (aq) D) 8 Li2SO4 (s) → 16 Li (s) + S8 (s, rhombic) + 16 O2 (g) E) 16 Li (s) + S8 (s, rhombic) + 16 O2 (g) → 8 Li2SO4 (s)

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Dax Simpson · Answer 1

(c) Li2SO4 (aq) → 2Li + (aq) + SO4 2 - (aq)

Explanation: Lithium atom donates electron to be more electropositive, while, sulphate ion accept electron to become more electronegative.