The atoms. The mole. Electronic structure of atoms. The periodic table. Ionic bond. Covalent bond. Chemical formulas. Other chemical bonds. Ideal gas law. Change of state. Enthalpy, entropy and free energy. Spontaneity of reactions. The solutions. Chemical equilibrium. Redox reactions. Reduction potentials. Acid-base equilibria (pH, buffer solutions). Solubility product
I. Bertini, C. Luchinat, F. Mani, Chimica, editrice Ambrosiana
I. Bertini, C. Luchinat, F. Mani, Stechiometria, editrice Ambrosiana.
The course introduces the fundamental elements of the General Chemistry, which constitute the basic knowledge needed for the following courses of the Laurea degree. The concepts introduced in the course of General Chemistry are if fact a requirement for the courses of Organic Chemistry, Vegetal Biology, Forest Ecology, Soil Chemistry, Soil Microbiology, Wood Technology, Vegetal Physiopathology…
Competence acquired (at the end of the course):
The aim of the course is to provide to the students basic information on the language of chemistry (symbols and formulas), on the structure of matter, on the reaction mechanisms in water solution, on the main chemical elements, on the structure of inorganic molecules.
Skills acquired (at the end of the course):
The course aims at providing to the students the capability to understand the basic language of the chemistry, to be able to follow concepts requiring the basic knowledge of general chemistry, and to be able to solve elementary problems through the application of the concepts introduced.
Total hours of the course (including the time spent in attending lectures, seminars, private study, examinations, etc...): 225
Hours reserved to private study and other indivual formative activities: 153
Contact hours for: Lectures (hours): 30
Contact hours for: Laboratory (hours): 24
Contact hours for: practice (hours): 18
Seminars (hours): 0
The practical activity consists of numerical exercitation of stoichiometry
Modalità di verifica apprendimento
written tests and final oral examination
Programma del corso
Atoms. Atomic mass, mole concept. Electronic structure of elements (orbitals, quantum number, aufbau, periodic properties). The periodic table. Covalent bond, Lewis structures. Bonding in solid state (ionic , molecular and covalent solids, metal). Hydrogen bond, van der Waals forces. Oxidation number. Gaseous state, ideal gas equation. Phase diagrams of one-component systems. Enthalpy, entropy, free energy, spontaneity of a chemical reaction. Concept of dynamic equilibrium. Redox reactions in aqueous solutions-electrochemical cells. Oxidation-reduction reactions. Acid-base reactions. Constants for acids and bases; pK; pH; buffers. Solubility product constants. Main properties of elements. Stoichiometry. Unit systems. Molecular structures. Determination of state variables from the ideal gas equation. Balancing of equations, redox reactions. Equilibrium in solution, calculation of pH.