The course aim to provide the fundamentals of chemistry and chemical-physics useful for the comprehension of materials structure-activity relationship. In particular, students will be able to predict the products of inorganic reactions starting from reagents. Moreover, thermodynamic will be used to predict the heat of reaction and the spontaneity. In this way the student should be able to predict if the reaction occurs or not.
Course Prerequisites
Basic knowledge in mathematics, in particular differential and integral calculations.
Teaching Methods
Lectures (hours/year in lecture theatre): 45
During the course slides were projected and additional exercises/explanations are drawn on blackboard. All slides are available for download. E-learning website where students can exercise online with immediate evaluation of results. It's possible also to make challenges between students.
Assessment Methods
Written exam consisting of theory (30 quizzes, 1h) and numerical exercises (2h). Oral exam optional.
Texts
Didactic material fiven by the lecturer. Book: D. Dondi e L. Vasta. Chimica: principi e applicazioni . Universitas Studiorum. website for self evaluation: http://www-5.unipv.it/dondi/ .
website with exercises done: https://sites.google.com/site/dondidaniele/ .
Contents
Basics of chemical formulas and chemical reactions Qualitative and quantitative aspects of chemical formulas and reactions, stoichiometry, principal reaction types
Radiochemistry Nuclear stability, radioactive decays, kinetic of radioactive decay, natural radioactive families. Chemical and biological effects of radiations. The environmental radioactivity. Radon.
Basics of chemical bond theory The hydrogen atom. Electronic configuration of elements and periodic properties. Ionic, covalent, polarized-covalent, coordination and metallic bonds. Molecular geometries. Dipolar moments of molecules. Intermolecular interactions: hydrogen-bond, van der Waals forces and dispersion forces. Ionic and covalent valences of elements of s, p block and first transition row. Oxides, hydrides, anions and cations, salts. Basics of organic chemistry.
States of matter Gaseous state: ideal gases and real gases. The ideal gas equation. Gaseous mixtures, Dalton’s law, PVT calculations. Solid state: crystalline systems, Bravais’ lattices, compact structures, reference structures for ionic salts. Covalent (diamond, graphite, silicon, quartz), metallic and molecular crystals. Liquid crystals. Liquid state: surface tension, adhesion and cohesion forces, wettability, vapor tension.
Thermodynamics, kinetics and chemical equilibrium Thermodynamic state functions. Enthalpy of formation of compounds, heats of reaction, thermodynamic cycles (Hess law), reaction isotherm. The equilibrium in gaseous phase, the equilibrium constant, reaction quotient, the effect of physical variables. Basics of chemical kinetics.
Solutions The measuring units of concentration: molarity, molality, w/w and w/v percent. Liquid-vapor equilibrium, the Raoult’s law. Freezing-point depression, boiling-point elevation, osmotic pressure. Solubility equilibrium (solubility product). Acid-base equilibrium, definition of pH, pH of strong and weak acids and basis. Hydrolysis of anions and cations. Buffer solutions.
Phase equilibria Phase state diagram of water. Thermal analysis of alloys. Eutectic diagrams and diagrams with total and partial solubility in the solid phase.
Electrochemistry Electrode potentials and basics of batteries. Standard electrochemical potentials, Nernst equation. Corrosion phenomena of metals, passivation, corrosion protection. Batteries and accumulators in everyday use. Electrolysis.
Materials Polymeric materials and structure/property relationship. Metals and ferrous alloys: steel, cast iron, the Fe/C diagram. Thermal treatments. Ceramic materials.