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How pure is our water?: Practicum
This elaborated practical challenges pupils in order on the basis of the OVUR method to examine the purity of water.
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Titrations: Practicum
In this exercise you perform titrations of:
- sodium hydroxide, with sulfuric acid;
- hydrochloric acid with sodium hydroxide;
- sodium carbonate with hydrochloric acid.
The worksheets for this lab are structured according to:
- necessities;
- …
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Experiment SK020 reaction: Practicum
In this exercise you study the effect on the reaction rate by changing the concentration of one of the reagents.
The worksheets for this lab are structured according to:
- necessities;
- purpose;
- theory;
- safety;
- method;
- study of the measurement …
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Change in conductivity of the solution by titration: Practicum
In this exercise you are trying to gain insight into:
- the gradient of changes in conductivity, upon addition of a strong base with a strong acid;
- performing measurements with sensors;
- the graphic course of measurements.
The worksheets for this …
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Acid hydrolysis of starch: Practicum
In this exercise, it is intended to:
- starch detect a lugoloplossing;
- glucose to detect with Fehling's solution.
The worksheets for this lab are structured according to:
- purpose of the lab;
- necessities;
- experiment;
- explanation of the …
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Saccharides: Practicum
In this exercise you go through the Fehlingstest the reducing properties after sugar solutions.
The worksheets for this lab are structured according to:
- purpose of the lab;
- necessities;
- experiment;
- observations.
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Chromatography: Practical
In this exercise, the aim is to increase the solubility after going out of polar and non-polar dyes in some solvents.
The worksheets for this lab are structured:
- purpose of the practicum;
- knowledge;
- supplies;
- method;
- task.
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Softening of water: Practicum
In this exercise, it is intended to:
- to determine the hardness of tap water;
- treat tap water softener resin.
The worksheets for this lab are structured according to:
- purpose of the lab;
- necessities;
- experiment;
- ask.
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Identification Comments: Practicum
In this exercise, the aim is to:
- single substances and organic compounds to detect using indicators;
- to verify that the solvent used is aqueous or not.
The worksheets for this lab are structured:
- purpose of the practicum;
- overview of the …
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Extraction of eucalyptol from eucalyptus leaves: Practicum
In this exercise, the aim is to win with the aid of steam distillation eucalyptus oil from eucalyptus leaves.
The worksheets for this lab are structured according to:
- purpose of the lab;
- necessities;
- arrangement;
- method;
- Results.
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Difference in acidity of organic acids: Practicum
In this exercise you show the difference in acid strength in aliphatic carboxylic acids. In addition, give an explanation for the different acid strength on the basis of the inductive and mesomeer effect in the carbon chain.
The worksheets for this …
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Synthesis of acetylene from calciumacetylide: Practicum
In this exercise you manufacturing acetylene from carbide and determine the efficiency of the reaction.
The worksheets for this lab are structured according to:
- purpose of the lab;
- necessities;
- arrangements;
- method;
- calculations and …
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