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18 LESSON 9. COMPLEX (COORDINATION) COMPOUNDS. Required base level. Conception about ​complex compounds. The law of mass action for chemical equilibria. Principles of compounding names. Questions for the preparation for the lesson. 1. Classification and structure of complex compounds. 2. Nomenclature of complex compounds by IUPAC. 3. Werner’s theory: a) the outer and inner spheres of complex compounds; b) central atom, coordination number, ligands. 4. Stability of complex compounds. Constant of instability and stability. 5. Metal-complex equilibria and processes, competition for the ligand, and competition for the central atom. 6. Metal-complex equilibria in the life processes. 7. The use of complex compounds in medicine. Input test-control on the topic “Complex compounds” Homework exercises. 1. Finish the complexation equations: a) Cu (NO 3 ) 2 + NH 3excess . … b) AgNO 3 + KI excess. … c) FeCl 3 + KCN excess. … d) Hg (NO 3 ) 2 + KCNS excess … Name the complex compounds obtained. Write the equations of dissociation of the complex, write the equations for calculating the K instab. 2. Write the formulas of the following complex compounds: a) brompentaammine cobalt (III) sulfate; b) potassium tetranitrodiammine cobaltate (II); c) sodium tetraiodmercurate (II); d) phosphatotriaquachromium (III); e) potassiumpentacyanonitrosoferrate (III); (e) diamminedichloroplatinum (II). Solutions of which of the above-mentioned complex compounds will not conduct an electric current? 3. Platinum ions Pt  4 + and ammonia are not detected in the solution of the complex salt PtCl 4 ×3NH 3. Silver nitrate from the solution precipitates ¼ part of the chlorine entering into it. Set the coordination formula for the complex compound. Give the equation for the ion exchange reaction betweenAgNO 3  and this complex.