Course code Ķīmi1001

Credit points 3

Chemistry

Total Hours in Course81

Number of hours for lectures16

Number of hours for laboratory classes24

Independent study hours41

Date of course confirmation30.03.2021

Responsible UnitInstitute of Food

Course developer

author Pārtikas institūts

Māra Dūma

Dr. sc. ing.

Course abstract

The aim of the course is to learn basic laws of chemistry, physical and chemical properties of metals, structure of matter, colligative properties of solutions; chemical kinetics and chemical balance. The part of electrochemical processes covers the potential theory of electrodes, galvanic elements, electrolysis and its application, electrochemical corrosion, and protection against it. Light, heavy metal construction.

Learning outcomes and their assessment

1. Knowledge and critical understanding of the chemical properties of metals in light and heavy constructions; processes in galvanic cells, electrolysers, and electrochemical corrosion and protection - 4 tests and 4 colloquiums.
2. Skills to analyze, compare and evaluate the resistance and reactivity of metals and their alloys under different conditions, to explain the influence of various factors on the rate of chemical reactions; to evaluate the possibilities of various galvanic elements and to find creative solutions for corrosion prevention in given conditions – 3 laboratory works.

3. Competence to objectively evaluate new information, to independently acquire and analyze information, as well as to use it in solving chemistry-related issues and practical work problems - 3 protocols of laboratory work, 8 tasks of independent work.

Course Content(Calendar)

Full time intramural studies:
1. The subject of chemistry. Atomic structure. Classification of inorganic compounds. (Lecture 1h). Indicator reactions, MR (1st Laboratory work 2h).
2. Periodic law and periodic table. Classification of inorganic compounds (Lecture 1h). Indicator reactions, MO (1st Laboratory work 1h). 1 st independent work on the classification of inorganic compounds.
3. Chemical bonds (Lecture 1h). Indicator reactions, FN (1 st Laboratory work 2h). 2nd independent work on Al, Mg, Be. Ti.
4. Chemical kinetics (Lecture 1h). Indicator reactions, universal indicator (1 st Laboratory work 1h). Test No. 1. 1st colloquium.
5. Chemical balance (Lecture 1h). Amphoteric hydroxides (Cu) (1st Laboratory work 2h).
6. Metals, their general characteristics (Lecture 1h). Amphoteric hydroxides (Al) (1st Laboratory work 1h). 3rd independent work on Cr, Mn, W, V.
7. Solutions, their properties (Lecture 1h). Amphoteric hydroxides (Zn) (1st Laboratory work 2h). 4th independent work on the chemical properties of amphoteric oxides and hydroxides.
8. Dispersion systems, their classification (Lecture 1h). Oxidation-reduction reactions (in acidic environment), (2nd Laboratory work 1h). Test No. 2. 2nd colloquium.
9. Colligative properties of solutions (Lecture 1h). Oxidation-reduction reactions (in neutral environment), (2nd Laboratory work 2h). 5th Independent work on Cu, Zn, Co, Ni.
10. Electrochemistry. Electrodes, their distribution (Lecture 1h). Oxidation-reduction reactions (in basic medium), (2nd Laboratory work 1h). 6th Independent work on Oxidation-reduction reactions.
11. Electrolysis (Lecture 1h). Reactions of metals (Cu) with acids (2nd Laboratory work 2h).
12. Electrolysis, its practical application (Lecture 1h). Reactions of metals (Zn) with acids (2nd Laboratory work 1h). Test No 3. 3rd colloquium.
13. Corrosion, its types. Chemical corrosion (Lecture 1h). Speed of chemical reactions, effect of concentration (3rd Laboratory work 2h).
14. Electrochemical corrosion (Lecture 1h). Speed of chemical reactions, effect of temperature (3rd Laboratory work 1h). 7th Independent work on Sn, Pb, Hg, Mo.
15. Corrosion protection (Lecture 1h). Chemical equilibrium, influence of reagent concentration,(3rd Laboratory work 2h). 8th independent work on electrochemical processes.
16. Metal alloys, their distribution, properties and application (Lecture 1h). Chemical balance, influence of final product concentration (3rd Laboratory work 1h). Test No 4. 4th colloquium.
Part time extramural studies:

All topics specified for full time studies are accomplished, but the number of contact hours is one half of the number specified in the calendar

Requirements for awarding credit points

Type of examination - exam in 1st semester. If 3 laboratory works were worked out and counted during the semester, 8 independent works were counted, 4 tests were successfully written and 4 colloquiums, whose average grade was 5 points and higher, then the student has the opportunity to receive accumulative exam evaluation. If students are not satisfied with their assessment, there is a possibility to take a written examination. The examination is compulsory if the average mark is lower than 5 points.

Description of the organization and tasks of students’ independent work

Preparation for tests, performing tasks of independent work, processing of laboratory work reports, processing of results obtained in laboratory work.

Criteria for Evaluating Learning Outcomes

The overall assessment of the study course consists of evaluations of the written tests and laboratory works, as well as the completion of independent work.
Final grade of the study course will be calculated using a marking scheme:
• tests 30%;
• colloquium 40%;
• laboratory reports 20%;
• independent work 10%.

Student must earn a positive mark (at least 4) for every course activity to pass the course.

Compulsory reading

1. Brown T.L., Le May Jr.H.E., Bursten B.E. Chemistry. The Central Science. 10tf ed. Upper Saddle River: Pearson Education, Inc., 2006. 880 p.
2. Brunere V., Kamzola L. u.c. Ķīmija augstskolu inženiertehniskajām specialitātēm. Rīga: Zvaigzne, 1980. 388 lpp.
3. Dūma M., Bluka A. Ķīmija. Metodiskie norādījumi un laboratorijas darbu apraksti Tehniskās fakultātes studentiem. Jelgava: LLU, 2008. 24 lpp.

4. Constable E.C., Housecroft C.E. Chemistry. 3rd edition. Harlow etc.:Pearson Prentice Hall, 2006. 1285 p.

Further reading

1. Čakste I. Vispārīgā ķīmija. Mācību līdzeklis. Jelgava: LLU, 2008. 66 lpp.
2. Kamzola L., Brunere V., Blūms A. Ķīmijas uzdevumi augstskolu inženiertehniskajām specialitātēm. Rīga: Zvaigzne, 1988. 209 lpp.

3. Rauhvargers A. Vispārīgā ķīmija: eksperimentāla mācību grāmata. Rīga: Zinātne, 1996. 383 lpp.

Notes

Compulsory course for the academic Bachelor's study program "Agricultural Engineering", professional bachelor study program "Machine Design and Production", professional bachelor study program "Applied Energy Engineering"