GENERAL AND INORGANIC CHEMISTRY
cod. 13482

Academic year 2023/24
1° year of course - First semester
Professor
Lara RIGHI
Academic discipline
Chimica generale e inorganica (CHIM/03)
Field
Discipline chimiche
Type of training activity
Basic
80 hours
of face-to-face activities
10 credits
hub: PARMA
course unit
in ITALIAN

Learning objectives




The student must demonstrate knowledge of the basic concepts of general chemistry and know how to apply them in the resolution of exercises (stoichiometry, balance of reactions, calculations of thermodynamic quantities) as well as in the description of the phenomena studied in the teaching module.
It is required to be able to:
1. Be able to use the scientific language of the topics covered in the chemistry course. (knowledge and understanding)
2. demonstrate an adequate knowledge of the basic laws of general chemistry and to know their application in real cases ( applying knowledge and understanding)
3. express in a concise and precise form the basic concepts of general chemistry in the written test. (Communication skills )
4. to create links between the various chapters dealt with and apply the acquired knowledge to the solution of problems of stoichiometric calculation and to demonstrate the understanding of the basics of chemistry by illustrating some of the basic laws and by the formulation of some examples (making judgments)
5. to integrate the didactic material provided with textbooks is required in order to formulate a synthesis in order to construct a base of preparatory knowledge to face the comprehension of successive courses of chemistry. ( learning skills)

Prerequisites




No prerequisites are required

Course unit content


Classification of the matter. Elements substances and mixtures. Mass conservation laws
Structure of the atom (neutron proton and electron) atomic number, atomic mass. Elements and Isotopes. Orbitals and rules of electron distribution. Periodic table and correlation with the electronic configuration. Periodic properties.
Chemical bond. Ionic and covalent bond. Oxidation number. Valence bond and octet rule. Lewis structures. Resonance formulas and formal charge. Orbitalic hybridization .Polarity in molecular bonds. Nomenclature of cations, anions and inorganic compounds.
Chemical reaction. Formula weight, molecular weight, size and use in the calculation of mass reactions. Stoichiometry. Balancing different types of chemical reactions. Ox-redox reactions.
Introduction to thermodynamics. First and second principles of thermodynamics. Reaction heat. Exothermic and endothermic reactions. Gibbs free energy, spontaneity of a process.
Chemical equilibrium. K equilibrium constant, Le Chậtelier's law. Factors that influence chemical balance.
States of the matter. Gaseous state: perfect gas state equation. Liquid state: vapor pressure, surface tension, boiling point, intermolecular forces (van der Waals forces, hydrogen bond). Notes on the solid state. Phase changes and phase diagrams, supercritical state.
Solutions. Solvent and solute, solubility. Colloidal solutions, emulsions. Methods to indicate the concentration (molarity, molality, normality, percentages). Henry's law. Colligative properties (cryoscopic lowering, ebullioscopic elevation, osmotic pressure).
Acids and Bases. Definition according to Brønsted. Conjugated acid and base. Ionic product of water, pH, calculation of Ka and Kb and their use in determining the strength of an acid or base. Strong acids and bases, weak acids and bases. Examples of hydrolysis of some salts, buffer solutions, pH of a buffer. Electrochemistry - Convention on redox half-reactions. Electrical work and galvanic cells. Standard hydrogen electrode. Scale of standard reduction potentials. Nernst equation. Concentration cells. Electrolysis. Faraday's laws. electrolytic cells. Electrolysis of water. Basics of kinetics. Reaction rate, effect of concentration and temperature, Arrhenius law, activation energy, catalysts (homogeneous, heterogeneous, enzymatic).
Elements of Inorganic Chemistry. Elements of the first and second group. Fourth, fifth and sixth group chemistry (C, Si, Sn, N, P, As, O, S). Chemistry of halogens.

Full programme




Introduction to the scientific method. Classification of matter. Elements substances and mixtures. Mass conservation laws (Lavoisier, Proust). Measurement systems for matter and energy.
Structure of the atom (proton, neutron and electron) atomic number, atomic mass. Elements and Isotopes. Orbitals and electron distribution rules. Periodic table and correlation with the electronic configuration. Periodic properties (ionization energy, atomic radius, affinity). Non-metal metals.
Chemical bond. Ionic and covalent bond. Oxidation number. Covalent bond and octet rule and valence evening expansion. Lewis structures. Formulas of resonance and formal charge. Molecular geometries and theory of minimum repulsion (VSEPR). Simple and multiple bonds. Σ and π bonds. Hybridization, hybrid orbitals and molecular geometries. Polar covalent bond, electronegativity, polarity of molecules.
Nomenclature of cations, anions and inorganic compounds
Chemical reaction. Formula weight, molecular weight, mole and use in the calculation of mass reactions. Stoichiometry. Balancing of different types of chemical reactions. Ox-redox reactions. Weight relationships: stoichiometric calculations, limiting reagent, non-quantitative reactions and yields.
Introduction to thermodynamics. First and second law of thermodynamics. Heat of reaction. Exothermic and endothermic reactions. Gibbs free energy.
Chemical equilibrium. Equilibrium constant K. Definition of Kp and K and their dependence. Le Chậtelier's law. Factors that affect the chemical balance. Heterogeneous equilibria.
States of matter. Gaseous state: the laws of Boyle, Gay-Lussac and Charles, perfect gas equation of state. Liquid state: vapor pressure, surface tension, boiling point, intermolecular forces. Perhaps by van der Waals, Hydrogen bond.
State diagrams. Equilibrium between phases. State changes (freezing point and boiling point). One component state diagrams (water and CO2). Heating curves
Solutions. Solvent and solute, solubility. Concentration of solutions (molarity, molality,% by weight and volume, mole fraction). Calculations on dilutions. Henry's Law. Colligative properties (cryoscopic lowering, ebullioscopic raising, osmotic pressure).
Acids and Bases. Definition according to Brønsted. Conjugated acid and base. Ionic product of water, pH, calculation of Ka and Kb and their use in determining the strength of an acid or base. Strong acids and bases, weak acids and bases. Examples of hydrolysis of some salts, buffer solutions, pH of a buffer solution. Calculation of pH for strong acids and bases. Calculation for acids, weak bases and for reactions in solution.
Introduction to kinetics. Rate of reaction, effect of concentration and temperature, catalysts (homogeneous, heterogeneous, enzymatic). Arrhenius law and activation energy, activated complex theory.

Bibliography




Any textbook of General Chemistry for undergraduate students

Teaching methods

The course takes place over 80 hours of lectures. The lessons will be carried out by explaining the concepts summarized in slides that will be made available to students. During the lessons practical examples will be given regarding the application of fundamental concepts of General Chemistry. The course includes practice lessons on the execution of stoichiometry exercises and on other topics of the course program. The slides will be available online on the Elly portal in pdf format for students.

Assessment methods and criteria


To access the exam it is necessary to register through the ESSE3 platform. The evaluation procedure includes a written test and an oral test. The written test includes 10 questions which include both the request to describe theoretical concepts and the performance of stoichiometry exercises. Each question will be evaluated for a maximum of 3 points. For partial answers or partially completed exercises, scores from 0 to 3 points will be assigned. The test will be passed if the overall evaluation reaches the score of 18/30 and will give access to the oral exam. The exam will last 2 hours. The oral exam will be based on the discussion of the written exam. The outcome of the exam, which includes written and oral tests, will be communicated and recorded through the ESSE3 platform only upon acceptance of the mark achieved. Students can view the written exam, by making an appointment with the teacher.

Other information

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2030 agenda goals for sustainable development

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