Question

2. Consider the ionic compound whose unit cell is shown below. The white spheres represent sulfur atoms and the black spheres represent zine atoms. LLORA AASTAT A) In which type of unit cell are the sulfur atoms found in this ionic compound? (I point) B) What is the empirical formula of this ionic compound? (1 point)

Answer 1

(1)

CaBr₂ and H₂O = CaBr₂ is soluble in water , so the reaction Δ H_sol is exothermic in nature.

CCl₄ and H₂O = CCl₄ will not soluble in water, so the reaction ΔH_sol is strongly endothermic in nature.

NH₃ and H₂O = NH₃ is soluble in water , so the reaction ΔH_sol is exothermic in nature.

HCl and H₂O = HCl is soluble in water , so the reaction Δ H_sol is exothermic in nature.

(2)

- • Sulphure ( FCC manger) * -> Zinc Iof Teachedral void alternatively Sulphure is present in face centreed Cubic Manner. nog suprun - x +@x! - 4 uphur = 1 X + x contribution of each face contribution of corenere ho of zinc = 4x0= 4 contribution of terrahedray void So, Znis 4:4 in simpler term the ratio is lil {Zns). empinical formula.