CHIMICA

Academic Year 2022/2023 - Teacher: ANTONELLA DI FRANCESCO

Expected Learning Outcomes

The course aims to provide the student with the basic contents to know and understand the fundamentals of chemistry, in particular, the knowledge of the main classes of inorganic and organic molecules, including biomolecules, and the relationship between structure-property-reactivity .

The set of concepts and fundamental knowledge of Chemistry acquired by the student at the end of the course will serve as the basis for learning the subjects with chemical content of the three-year degree program. At the end of the lessons, students must have acquired the following skills:

- Orientation on the periodic table with the main properties of the elements.

- Familiarity with the nomenclature and acid-base properties of the most common chemical compounds.

- Ability to discuss the various types of chemical bond in some compounds.

- Realize the balance of reactions.

- Proceed with the stoichiometric calculations.

- Ability to perform calculations for acid-base equilibria in aqueous solution.

- Ability, given a structural formula, to attribute the IUPAC name to an organic compound or, having the name, go back to the formula.

- Ability to recognize the main structural and reactivity characteristics of the most common classes of organic compounds, including the main classes of biomolecules.

Detailed Course Content

Part I General Chemistry

1. Introduction to chemistry.

2. Atoms, molecules and ions. Structure of the atom.

3. The periodic table. Electronic configuration of atoms and periodicity of chemical properties; the periodic table and its characteristics; ionization energy; electronic affinity; electronegativity.

4. The chemical bond: classification of chemical bonds; weak interactions.

5. Chemical compounds (part I): Ionic compounds and molecular compounds. Formulas, nomenclature and properties of compounds; binary compounds: hydrides, oxides, peroxides and hydracids; ternary compounds: oxyacids and hydroxides; Salts; particularity of some elements; metal cations and polyatomic anions. Exercises.

6. Chemical compounds (part II): The concept of mole and Avogadro's number; molecular weight; fundamentals of stoichiometry; the chemical equation and its balance; concept of chemical equilibrium and equilibrium constants; stoichiometric calculations: quantitative relationships in chemical reactions; limiting reagent. Exercises.

7. The solutions. Concentrations of the solutions; colligative properties of solutions. Exercises.

8. Ionic equilibria in aqueous solution: ionic product of water and pH; theory of acids and bases; pH calculation; buffer solutions. Exercises.

II part Organic Chemistry

1. Introduction to organic compounds: functional groups; organic compound classification and nomenclature; representation of organic molecules.

2. The arrangement of atoms in space: isomerism.

3. The chemistry of biomolecules.

Learning Assessment

Learning Assessment Procedures

The exam consists of a written test and an oral test.

In particular, the written test is usually divided into a series of exercises to be performed in 90 minutes. The exercises will be related to the first part of the program (general chemistry) to the second part of the program (organic chemistry).

The oral test (which generally takes place a few days after the written test) consists in the discussion of the written test and in the discussion of some of all the topics of the program.

The evaluation is expressed at the end of the two tests. Passing the written test (eligibility) allows access to the oral test, which if positively evaluated will result in the final grade of the exam.

For first-year students who continuously attend the course there are two written tests in progress. Passing the first test is essential for access to the second ongoing test. Passing both written tests in progress exempts the student from taking the final exam. The details on the development of the ongoing tests will be illustrated by the teacher at the beginning of the course.

Verification of learning can also be carried out electronically, should the conditions require it.