The bachelor thesis focuses on the topic connected to chemical calculations. The goal of bachelor thesis was to study the most often mistakes and example types that are very difficult for students.

This work refers about the elements of carbon group and their important compounds. The work is divided into two parts. In the theoretical part there is a theoretical characteristic of the elements of carbon group - something about their occurrence, physical and chemical properties,...

This work deals with the assessment of cholesterol in food. There are described the physiological function of cholesterol and its effect on the formation and development of atherosclerosis. The work also includes a statistical evaluation of the daily intake of cholesterol in the Cz...

This work explores the possibility of preparing amylase extracts from green malt in stock, the work studies the changing activity of green malt amylase at various stages of germination and the difference between the salivary amylase activity and the activity of amylase from barley&...

The work includes the historical development of studies and selected ways to describe state behavior of gases. In the next part of the chapter is devoted to the calculation of pressure using the equations of state mentioned in the thesis. Followed by a discussion of obtai...

This bachelor's thesis is focused on spectral methods, which we can make use of in determination of iron in the water. The quantity of iron in the water was determined by using three spectrophotometric methods. These methods were tested and then afterwards compared to each...

This work deals with determination of sodium chloride by argentometric titration in selected food. The aim of this work was to find out how much salt is contained in our diet. The measuring data were compared with database of food consumption and then was evaluated the&#x...

As a result of this work the method "Determination of methanol and ethanol in spirits" has been developed. This method was created and optimized on instrument DANI Master GC Fast Gas Chromatograph. The procedures of injection, setting the instrument and detection of analytes&#...

The main topic of this bachelor work are ?Chalcogenes and their compounds?. This work is divided into two parts. In the first part it described theoretical characterize about Chalcogenes ? their history, occurence, properties, production, preparation and their the most important compounds.&#...

Aim of this paper is on increase in effectivity of preparative high-performance liquid chromatography in such way, that it could compete already introduced preparative thin-layer chromatography and it could be successfully used by the students in their scientific activity. Experimental part ...

The thesis deals with acid-base reactions. It is focused on balance in aqueous solution of acids and bases, mainly on watching of pH in the solutions. The thesis involves set of practical tasks oriented on the dealing with pH measuring sensor.

The structure of an atom is described in detail with an emphasis on the atomic nucleus, elementary particles and reactions that take place in the nucleus. The thesis is also introducing radioactivity, nuclear reactions, and detail about nuclear fission or thermonuclear synthesis. A ...

The thesis focuses on oxidation-reduction processes. The attention is paid to potentiometric titration and to determination of potential changes. The thesis includes set of practical tasks that focus on working with sensor for measuring oxidation reduction potentials.

The paper is focused on a problem of liquid ? liquid equilibria for the ternary systems. The paper is divided on two parts. The first part is theoretical and the second is experimental section. In the theoretical part were introduced basic theses referred to the field.&#x...

This work began with the extraction of the betuline from a birch bark. The betuline was converted to allobetulin using intermediate the allobetulin-formate. Then the allobetuline was oxidized to the allobetulone using with other agents under various conditions. The classical methods of ...

The aim of this work is to evaluate changes in toxicological parameters of the Environment for the period 1994 - 2010. The data are drawn from the data System of monitoring the enviromental impact on population health. Toxicological parameters were evaluated in air, drinking w...

This thesis describes some laboratory techniques like column chromatography, thin-layer chromatography, distillation and extraction. In the practical part there is also described simple transformation 23-hydroxybetulin (acetylation).

This work is focused on describing basic laboratory techniques in inorganic laboratory and safety in the laboratory. It describes the preparation of various inorganic preparations, which are accompanied by their own knowledge. The last point of the spin tube reaction.

This work describes the connection between natural antioxidants and free radicals, it analyzes the total antioxidant capacity of the organism, phenolic compounds, flavonoids, vitamin C, vitamin E and carotenoids. These indicators were examined by four different methods under regular laboratory co...

The main objective of this thesis is to familiarize the reader with the basic chemical substances. This thesis concentrates on their brief characteristics, on symptoms caused by contact with these substances, on their use in industry, on their occurrence in everyday life and on...