Practical Chemistry

Total Hours in Course81

Number of hours for lectures8

Number of hours for laboratory classes24

Independent study hours49

Date of course confirmation30.03.2021

Responsible UnitInstitute of Food

Course developers

Pārtikas institūts

Ingmārs Cinkmanis

Dr. sc. ing.

Baiba Ozola

Dr. biol.

Course abstract

This study program acquaints students with substances and chemical processes which have essential importance in our everyday life, with main properties of these substances and the main regularities of these processes. This study course gives an information about properties, possibilities and limitations of application of the materials suitable in everyday care, as well as, gives a view in the problem of pollution of environment and food

Learning outcomes and their assessment

Students are able to show knowledge of the basic issues of general chemistry as well as structure and properties of materials, detergents and cosmetics used in everyday life. This knowledge allows students to recognize different materials, compile chemical equations and to calculate concentrations of prepared solutions (1st, 2nd, 3rd, 4th and final test).
In the study course students master skills of carrying out chemical experiments and explaining the obtained results. Obtained theoretical knowledge and practical skills students are able to apply to acquire further courses related to chemistry as well as in their professional activities (8 laboratory works).
Mastered the study course students are able independently to analyze problems related to the materials, detergents and cosmetics used in everyday life and to choose the best way to solve the practical issues (laboratory work protocols, tasks of independent work).

Course Content(Calendar)

Full time intramural studies:
1. Lecture Metals and nonmetals (1h). Test of general level of knowledge of chemistry (1h)
2. Workshop Oxides (2h)
3. Lecture Solutions, solvents, dissociation, the concept of pH (1h). Workshop Acids (1h)
4. Workshop Bases, 1st test Names of oxides and acids (2h)
5. Lecture Fibres (1h). 1st laboratory work Use of acid-base indicators (1h)
6. 2nd laboratory work Metal reactions with acids, 2nd test Oxides (2h)
7. Lecture Colors (1h). Workshop Salts, 3rd test Acids (1h)
8. 3rd laboratory work Obtaining and properties of bases, 3rd test Bases (2h)
9. Lecture Glue (1h). 4th laboratory work Salts (1h)
10. Workshop Calculations of solutions concentrations (2h)
11. Lecture Polymers, polymer packaging (1h), 5th laboratory work Obtaining glue from animal products, checking their properties (1h)
12. Preparation of solutions of various concentrations (2h)
13. Lecture Detergents (1h). 7th laboratory work Determination and properties of polymers (1h)
14. 8th laboratory work Soaps and synthetic detergents (2h)
15. Lecture Cosmetics (1h). Workshop Water hardness (1h)
16. Lecture Environmental pollution (1h). Test The most important issues of practical chemistry (1h)

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

8 laboratory works must be worked, their protocols must be credited, 4 tests must be passed as well as a test on the most important issues of practical chemistry

Description of the organization and tasks of students’ independent work

Preparation for tests, design of laboratory work protocols, processing of laboratory work results

Criteria for Evaluating Learning Outcomes

A student can receive an assessment if 8 laboratory works have been completed, protocols have been submitted for them, have successfully passed 4 tests and final test. Test with a mark is formed from: tests (40%), laboratory work protocols (20%), and a final test (40%)

Compulsory reading

1. Ozola B. Praktiskā ķīmija: mācību grāmata. Rīga, 2017, 92 lpp.
2. Čakste I. Vispārīgā ķīmija: mācību līdzeklis. Jelgava: LLU, Rīga: Drukātava, 2008. 66 lpp.
3. Čakste I. Polimēru ķīmija: mācību līdzeklis. Jelgava: LLU, Rīga: Drukātava, 2008. 65 lpp.
4. Čakste I. Iesaiņojuma materiālu ķīmija: mācību līdzeklis. Jelgava: LLU, Rīga: Drukātava, 2008. 112 lpp.
5. Druviete B., Truksne D. Neorganiskie savienojumi, to klasifikācija un vispārīgās ķīmiskās īpašības: metodiskie norādījumi un vingrinājumi. Jelgava: LLU, 2008. 59 lpp.

Periodicals and other sources

1. https://chemicalsinourlife.echa.europa.eu/lv/chemicals-in-cleaning-products
2. https://www.zalabriviba.lv/ilgtspejigs-paterins/kimija/kimisko-vielu-apraksti/tenzidi/
3. https://www.zalabriviba.lv/ilgtspejigs-paterins/zalais-celvedis/tirisanas-lidzekli/

Notes

Compulsory course TF professional bachelor study program “Design and Crafts” in full-time and part-time studies

Atsauksmes