70/0001-M - CHEMISTRY
Academic Year 2020/2021
Free text for the University
ANGELA SERPE (Tit.)
- Teaching style
- Lingua Insegnamento
|[70/72] CIVIL ENGINEERING||[72/00 - Ord. 2013] PERCORSO COMUNE||6||60|
|[70/73] ENVIRONMENTAL AND LAND ENGINEERING||[73/00 - Ord. 2020] PERCORSO COMUNE||6||60|
The course is addressed to introduce the theoretical and experimental foundations of the Chemical Sciences and is aimed at developing, through the synergy between the lectures and the numerical exercises, strong knowledge and skills of basic chemistry necessary to deal with the subsequent courses in a productive way.
Knowledge and understanding (knowledge)
The main knowledge to be acquired during the course are:
• fundamentals of atomic and molecular theory (chemical bond)
• elementary description of the periodic properties of the elements
• properties and reactivity of substances and qualitative and quantitative aspects of chemical transformations
• fundamentals of classical thermodynamics applied to chemical reactions
• the concept of chemical equilibrium
• fundamentals of electrochemistry.
Ability to apply knowledge and understanding (skills):
The topics are treated in such a way that the student, appropriating the scientific method, can fully deal with the problems of a chemical nature related to the profession of Engineer.
The main skills to pursue are:
• use of the scientific language proper to the discipline
• interpretation of the fundamental properties of the elements
• interpretation of the structure and properties of molecules and materials
• writing and reading a chemical reaction in its quantitative aspects
• calculation of gas properties and solutions
• discussion and complete treatment of the chemical balance and the factors that influence it, in particular acid / base, red-ox and precipitation balance
• calculation of thermodynamic quantities
• analysis of corrosive phenomena and electrochemical processes.
Ability to critically approach the topics covered in the course knowing how to frame them in the appropriate context and deal appropriately.
Tutorials on relevant topics covered in the lectures, will offer the student the opportunity to check the knowledge acquired on the various topics proposed.
Ability to communicate knowledge and skills acquired using the scientific language of chemistry, both in written and oral expression.
The organization of the course, which provides for the development of a theme both from the theoretical point of view (frontal lesson and individual study) and from the point of view of data processing (numerical exercises), has the aim of developing a student's ability learning that allows him/her to face with competence and autonomy the future challenges of his/her student and / or professional career.
Students are expected to actively and assiduously attend lectures, guided exercises and ongoing corrections in order to deepen their preparation and face the assessment tests more consciously.
• Fundamental concepts of elementary algebra, use of exponents and logarithms, use of trigonometric functions, methods for solving equations of first and second order;
• concepts of elementary physics such as force, velocity, energy, momentum, scalar and vector quantities.
-THE MATTER: the states of aggregation, elements and compounds, pure substances and mixtures. Physical and chemical transformations. Units and uncertainty of measurements.
-THE ATOMIC MODEL: the subatomic particles (electrons, neutrons, protons), the atomic number, the atomic mass, the isotopes, the mole, mass-mole conversion calculations.
-ELECTRONIC CONFIGURATION: Aufbau principle, Pauli exclusion principle, Hund rule. Electronic configuration and periodic properties.
-THE PERIODIC TABLE: elements, groups, periods, regions. Conventional nomenclature and IUPAC.
-CHEMICAL REACTIONS: their classification and balance.
-THE SOLUTIONS and their physical properties
-STATES OF MATTER: gases, liquids and solids. Phase diagrams. Intra- and inter-molecular forces.
-THERMOCHEMISTRY: Heat & work. Thermodynamic principles and spontaneity.
- THE CHEMICAL BOND: valence electrons, Lewis formulas, octet rule and its exceptions. Ionic bond. Covalent bond. Lewis structural formulas, bond polarity, electronegativity, oxidation number. Molecular geometry. Orbital hybridization. Notes on the theory of molecular orbitals.
-The CHEMICAL BALANCE: mass action law. The equilibrium constant, reaction quotient, Le Chatelier's principle.
-ACID-BASE BALANCE: definition of acid and base (Arrhenius, Bronsted-Lowry, Lewis), strength, reactivity. Auto-ionization balance of water, pH and pOH. Hydrolysis of salts and buffer solutions.
-SOLUBILITY BALANCES: Prediction of the precipitation of a salt and effect of the common ion and pH.
-ELECTROCHEMISTRY: Nernst equation, batteries and corrosion phenomena.
The course consists of lectures (52 hours) and numerical exercises (8 hours). Students are supported by tutoring activity.
Multimedia tools (computers, projector, movies and animated simulations), traditional (blackboard) and participatory learning will be employed during the course.
The teacher receives the students after the lectures and by appointment.
Please note that for the academic year 2020-21, with reference to the "Methods of delivery of the A.A. 2020/2021 ", p. 12 of the Manifesto generale degli Studi, it is stated that “Teaching will be delivered simultaneously both in presence and online, thus outlining a mixed teaching that can be attended at university classrooms or by remote connection. At the beginning of the semester, the student will opt for face-to-face or remote mode, the choice will last the entire semester. If the number of students exceeds the capacity of the classrooms, determined on the basis of government provisions on health matters for the purpose of limiting the wide-spreading of Covid-19, the attendance of the lectures will be regulated through a shift system that will be communicated in due time to the interested students ".
Verification of learning
The exam consists of a written test and an interview.
Registration for the exam takes place online through ESSE3 platform, at least 3 days before the exam date.
The written test in person (candidates are invited to read the UNIVERSITY PROTOCOL FOR THE REGULATION OF THE CONDUCT OF PROFIT EXAMS at the link: https://www.unica.it/unica/protected/231916/0/def / ref / GNC10761 /) consists of exercises and questions on the course program.
The written test is passed by mark 18/30. Passed test gives the right to take the interview (by remote, via TEAMS) or, optionally at the student's choice, to register the mark obtained.
Students who obtained from 16 (included) to 18 (excluded)/30 in the test are admitted to the interview "with reserve".
It is possible to arrange exclusively remote exams in response to specific requests from students with specific needs.
The final grade takes into account:
Quality of the knowledge, skills, competences, specifically appropriateness, accuracy and consistency of
c) ability to apply knowledge and understanding
a) Ability of expression
b) Proper use of the specific language of the discipline
c) Logical skills and inherent consequentiality in communicating
d) Ability to connect different subjects by finding the common points and establish a consistent overall design, i.e. taking care of structure, organization and logical connections of speech
f) Ability to summarize also through the use of specific symbolism of each discipline and graphic expression of ideas and concepts, for example in form of formulas, schemes, equations.
Availability to exchange and interact with the teacher during the interview.
a) critical thinking
b) ability of self-evaluation.
Consequently, the judgment can be:
a) Sufficient (18-20/30)
Little acquisition of theoretical knowledge, superficial level, many gaps. Modest communicative abilities, but still sufficient to support a coherent dialogue, logical capacity and consequentiality in fitting the subjects of elementary level; poor capacity of synthesis and rather stunted ability of graphical expression, scanty interaction with the teacher during the interview.
b) Moderate (21-23)
Moderate acquisition of knowledge but lack of expatiation, a few gaps; communicative abilities more than sufficient to support a coherent dialogue; acceptable mastery of the scientific language, logical capacity and consequentiality in fitting the subjects of moderate complexity, good enough capacity of synthesis and acceptable ability of graphical expression.
c) Good (24-26)
Rather large wealth of knowledge, moderate in-depth, with small gaps; satisfactory mastery of the communicative abilities and meaningful scientific language; dialogical ability and critical thinking well detectable, good capacity of synthesis and more than acceptable ability of graphical expression.
d) Outstanding (27-29)
Very extensive wealth of notions, high in-depth, with marginal gaps; remarkable ability in communicating and high mastery of scientific language; remarkable dialogical capacity, good competence and relevant aptitude for logical synthesis, high capacity of synthesis and graphical expression.
e) Excellent (30)
Very extensive and in-depth knowledge, irrelevant gaps, high capacity and high mastery in communicating through the scientific language; excellent dialogical ability and marked aptitude to make connections among different subjects, excellent ability to synthesize and very familiar with the graphical expression.
The praise is attributed to the candidates clearly above average, and whose notional, expressive, conceptual, logical limits, if any, as a whole are completely irrelevant.
Theory & exercises
-Petrucci, Herring, Madura, Bissonnette, Chimica Generale – Principi ed Applicazioni Moderne, 11 edizione, PICCIN
-Peter Atkins, Loretta Jones, Leroy Laverman Principi di chimica, Quarta edizione, Zanichelli
-H. Stephen Stoker, Principi di Chimica, EdiSes
- Ivano Bertini, Claudio Luchinat, Fabrizio Mani, Enrico Ravera, Stechiometria - Un avvio allo studio della chimica, Sesta edizione, Zanichelli
The slides of the lectures, numerical exercises representative of the exam test and solved during tutoring activity, are available to the students.