CHIMICA GENERALE ED INORGANICA II E LABORATORIO M - Z

The aims of the course is to provide the first rudiments of General Chemistry, which will serve as cultural baggage to address the subsequent teachings.

It is the place where you learn to enter probably for the first time in depth within the chemical processes with particular attention to the reactions in the gas phase or aqueous solution.

In this second part of the course the solubility equilibria, the chemical thermodynamics, the electrochemistry will be treated with particular attention and will also give an outline of Inorganic Chemistry.

Initially the course will includes a large number of lectures to deal with about 2/3 of the topics.

Then the lectures will be combined with laboratory hours where the students will put into practice the concepts addressed in the front lectures.

Finally, a session of numerical exercise facing problems on the topics covered in lectures will be provided

1. Ionic equilibria in aqueous solution: solubility of salts and solubility product.

2. Overview of thermodynamics and thermochemistry: state variables, the principle of thermodynamics, molar thermal capacities, measurement of heat, Hess's law and reaction enthalpies, the principle of thermodynamics, the principle of thermodynamics and reaction entropies, free energy, relationship between the free energy and the equilibrium constant.

3. Electrochemistry: conductivity of aqueous solutions, electrolysis, Faraday laws, piles and normal potentials of semi-elements, use of normal potentials for the prediction of a redox reaction, overvoltage and discharge potentials.

4. Inorganic chemistry: hydrogen and elements of the s group, alkaline and alkaline-earth metals, elements of the p-block: outlines on the third group, fourth group, fifth group, sixth group (the calcogens), seventh group (the halogens), outline on rare gases. Overview of the transition elements. Chemistry of the first transition series: Chromium, Manganese, Iron, Cobalt, Nickel, Copper and Zinc.

5. Exercises: - Solubility and solubility product (Definition of solubility product constant Relationship between solubility of salts and their solubility product for salts of different stoichiometry)

- Thermodynamics (calculation of the thermodynamic parameters of a reaction and of the relative equilibrium constant)

- Electrochemistry (Calculation of the E ° of a redox reaction and of the relative equilibrium constant, calculation of the quantities obtained from electrolysis of saline solutions and molten salts)

6. Laboratory experiences: 1) Titrations of strong monoprotic acids and also pH-metric

2) Solubility of salts (determination of solubility product of a slightly soluble salt and solubility test of silver halides in ammonia)

3) Dependence on the solubility of salts from the temperature

4) Construction of a stack and aqueous solutions of aqueous solutions

5) Determination of the enthalpy of formation of magnesium oxide

6) Permanganometric titration of hydrogen peroxide and a detergent containing sodium percarbonate

The course includes 5 hours of lessons a week, from May we will spend a morning in the laboratory (9-13)

All the topics covered are considered indispensable for passing the exam.

1. M.S. Siberberg, CHIMICA (La natura molecolare della materia e dele sue trasformazioni), Mc Graw Hill

2. R.H. Petrucci, W.S. Harwood, F.G. Herring, CHIMICA GENERALE (Principi e moderne applicazioni), Piccin

4. P Michelin Lausarot, G.A. Vaglio, STECHIMETRIA, Piccin