Atoms. Molecules. Mole concept. 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. 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.
Learning Objectives
Knowledge acquired:
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 the fundations for the courses of Organic Chemistry, Analytical Chemistry, Physical and Chemical Analysis of Food, Biochemistry.
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.
Prerequisites
No
Teaching Methods
CFU: 6
Total hours of the course (including the time spent in attending lectures, seminars, private study, examinations, etc...): 150 (= 6 x 25)
Hours reserved to private study and other indivual formative activities: 102
Contact hours for: Lectures (hours): 48
Contact hours for: Laboratory (hours): 0
Contact hours for: practice (hours): 0
Seminars (hours): 0
Stages: 0
Further information
nothing
Type of Assessment
Written test and oral examination.
The written test (of the duration of 2 hours) is aimed at verifying the skills and the knowledge of the student through exercises of stoichiometry, exercises of writing of chemical formulas and chemical reactions, and questions. The students who will pass the written test (with an evaluation of at least 18/30) will be admitted to the oral exam. In the oral exam, the acquired skills and the student's mastery of the concepts part of the program of the course will be verified. In particular, the ability to solve problems in the chemical field will be evaluated. The evaluation will also take into account the properties of language and the understanding of the relationship between the different topics of the program.
Course program
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.