Course description

Guide to Chemistry

for Students of Veterinary Faculty

2023/2024 winter term

Teaching Staff

Dr. Zoltán Vincze                                 Associate Professor; Head of Department

Anna Alekszi-Kaszás                           Chemist engineer, PhD student

Dr. Tamás R. Varga                               Associate Professor

Dr. Mihály V. Pilipecz^*                         Lecturer, Correspondent teacher for the English-groups.

Email: [Click to see email]

The subject of Chemistry contains 30 lectures and 30 laboratory practicals in the winter term. The theoretical part of the Chemistry course is taught in a hybrid format. Half of the students attend the 30 classroom lectures in person, while the other half follow them online every week. Participation in the laboratory practicals is compulsory and attendance will be recorded each time.

Any recent Chemistry textbooks of college or higher level can be used (e.g. Raymond Chang, Ken Goldsby: Chemistry, McGraw-Hill Inc., 13^th edition, 2018). The use of the Chemistry Laboratory Manual is prescribed because this Manual serves as the laboratory protocol, as well. The free electronic versions of the lecture (slides in pdf and mp4) can be downloaded from the E-learning system.

Participation in the Laboratory Training

The duration of each practical is 2 × 45 min., and they will be held without breaks:

Monday, 8:15 – 9:45 for groups 5, 6

Monday, 10:15 – 11:45 for groups 3, 4

Monday, 12:15 – 13:45 for groups 9, 10

Monday, 14:15 – 15:45 for groups 1, 2

Tuesday, 8:15 – 9:45 for groups 7, 8

at the F Building, close to the entrance of the gym. The individual workplace of students in the Laboratory is optional but it should be kept during both Terms. Participation in laboratory exercises will be not allowed without a lab coat, Manual, and safety goggles (the latter is provided in the lab). In case of missed lab exercise, the student has to take a make-up lab next week. For the make-up lab, the student has to fill the missed lab in the Manual and show it to the supervisor. (S)he will be asked a few short, theoretical questions from the missed lab(s). If they are properly answered then one can get a valid signature for the missed lab.

 

Preparation for Lab Exercises

The goal of laboratory practices is to perform experiments and demonstrations in the laboratory, which will provide empirical evidence for the factual knowledge obtained from the theoretical lectures. A thorough theoretical preparedness is needed for successful practical laboratory work. Before the given chemistry lab, it is important to review the relevant chapters of the lecture(s)/textbook(s) of chemistry and to study the extensions found in the Manual. Supervisors might check the preparedness and work of the students during the lab exercises. In case of unsatisfactory preparedness, the given practical will not be accepted, therefore it should be repeated in the same week or as a make-up lab.

Each laboratory experiment should be done individually (except for demo-, and group experiments) and should be started right after the introduction. The observations and experimental data should be instantly documented after the given experiment on the odd pages of the Manual. However, writing the reaction equations and calculations in the Manual, before (at home) the given lab practical is highly recommended.

At the end of the practical, students have to clean used lab tools and set back the reagents to their original place. Before leaving the laboratory Manuals will be checked and signed by one of the supervisors.

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Lectures theme

Schedule of Lectures  for Winter-term 2022

Week	Lecture
Sept. 4 – 8	Introduction. Inorganic chemistry. Periodic table. Atomic Structure, atom models. Basic principles of wave mechanics
Sept. 11 – 15	Molecular orbitals. Exeptions to  the octet rule. Electronegativity Polar covalent bonding. Molecular geometry. Intermolecular attractions
Sept. 18 – 22	Reaction equations. Hydrogen. Halogens. Covalent bond. Halo compounds. Oxygen, oxides, oxyacids
Sept. 25 – 29	Sulfur and S-compounds. Nitrogen and N-compounds. Phoshorus and P-compounds. Carbon, and their compounds. Metals and their compounds. Complexes
Oct. 2 – 6	States of Matter
Oct. 9 – 13	Solutions
Oct. 16 – 20	Reaction kinetics. Homogen. and heterogeny. equilibria
Oct. 23 – 27	Acid and base equilibria.
Oct. 30 – Nov.03
Nov. 6 – 10	Buffers. Hydrolysis of salts
Nov. 13 – 17	Chemical thermodyn. 1st law. Enropy. Spontaneous proc. Gibbs free energy, 2nd law, chem. Thermodyn. and equlibria
Nov. 20 – 24	Electrochemistry
Nov. 27 – Dec. 1	Colloids
Dec. 4 – 8	Nanosystems
Dec. 11 – 15	Methods of Chromatography

Practical lessons theme

Schedule of  Practicals for Winter-term 2022

Week	Practical
Sept. 4 – 8	Lab I: Introduction
Sept. 11 – 15	Lab II: Basic laboratory techniques 1
Sept. 18 – 22	Lab III: Basic laboratory techniques 2
Sept. 25 – 29	Lab IV: Inorganic chemistry 1
Oct. 2 – 6	Lab V: Inorganic chemistry 2
Oct. 9 – 13	Lab VI: Inorganic chemistry 3
Oct. 16 – 20	Lab VII: Rate of chemical reactions
Oct. 23 – 27	Seminarium (preparation for the test)
Oct. 30 – Nov.03	Rector’s break
Nov. 6 – 10	Lab VIII: Chemical equilibria
Nov. 13 – 17	Lab IX: Acid-base equilibrium. Potentiometric titration
Nov. 20 – 24	MIDTERM TEST
Nov. 27 – Dec. 1	Lab X: Titration I. (acidi-alkalimetry)
Dec. 4 – 8	Lab XI: Titration II: (redoximetry)
Dec. 11 – 15	Lab XII: Preparation and properties of colloids

Evaluation description

Preparation for Lab Exercises

The goal of laboratory practices is to perform experiments and demonstrations in the laboratory, which will provide empirical evidence for the factual knowledge obtained from the theoretical lectures. A thorough theoretical preparedness is needed for a successful practical laboratory work. Before the given chemistry lab, it is important to review the relevant chapters of the lecture(s)/textbook(s) of chemistry, and to study the extensions found in the Manual. Supervisors might check the preparedness and work of the students during the lab exercises. In case of unsatisfactory preparedness, the given practical will not be accepted, therefore it should be repeated in the same week or as a make up lab.

Each laboratory experiment should be done individually (except for demo-, and group-experiments) and should be started right after the introduction. The observations and experimental data should be instantly documented after the given experiment on the odd pages of the Manual. However, writing the reaction equations and calculations in the Manual, before (at home) the given lab practical is highly recommended.

At the end of the practical, the students have to clean the used lab-tools, disinfect the surface of the table and set back the reagents to their original place. Before leaving the laboratory Manuals will be collected. The checked Manuals can be taken by the group leaders, in two days from the student’s lab.

Exam information

Requirements

1)         Supervisors will randomly check the preparedness of the students with a short written test in the lab five times during the term. The subject is the topic of the current lab. With these short tests, the students can collect 5×3 = 15 points.

2)         Midterm Test. During the term, all students are obliged to perform one written test (45 min), whose subject includes the topics of the laboratory exercises and the related lectures.

Date:      4^th week of November, during the lab

Topic:    Chemical calculations (stoichiometry) and pH calculations (20 points)

The test cannot be later upgraded. Only those students who missed the midterm test due to documented illness are obliged to write a make-up test(s) on December 05^th at 18:00. The result of the test will be announced within 3 working days from the writing date. Smartphones, graphic calculators, netbooks, tablets, and other text-storage electronic devices are not allowed to be used during the tests/exams. Cheating, plagiarism, or use of the above-mentioned devices are not tolerated (0 points), and the incident will be promptly reported to the Department of Student Affairs.

3)         Titrations. The submitted results of two titrations (i.e. analytical determination of mass-concentrations of NaOH and FeSO₄) in exercises No. 10 – 11 will be evaluated with 0 – 5 points/titration (0-10 points overall).

4)         End-of-term Examination. The Winter-term has to be closed with a 120 min. written examination with 120 points, which includes all subjects of lectures and laboratory exercises (General-, and Inorganic Chemistry). The first part of the exam contains fundamental questions for 10 points (which is part of the total score), where a minimum of 5 points must be achieved for the exam to be valid. If the student does not reach this threshold, the remaining parts of the exam will not be evaluated, and the grade will be a ‘fail’. If the total score achieved in the exam is less than 60, then, regardless of the points earned during the semester, the exam grade will be a ‘fail’. The result of the exam will be announced within 3 working days from the writing date. More information about the exam will be given in the lectures. The Chemistry exams will be held on:

December 20^st 2023,               January 3^rd 2024,

January 10^th 2024,                  January 24^th 2024,                  January 31^st 2024

from 14:00. (Please, arrive to the location 15 minutes earlier.)

The grade will be determined by the sum of points from the short tests, midterm test, titrations and examination (165 points overall) as follows:

Points	Grade
0 – 82	unsatisfactory (1)
83 – 104	pass (2)
105 – 125	fair (3)
126– 145	good (4)
146 – 165	excellent (5)

In order to help the students’ work consultations can be organized. Dates of the consultations will be announced later, as agreed with the students