ChemIQSoc [EN]

Inorganic chemistry

1. Dissolution of metals in acids–Preparation of ferrous sulfate  [ Instructions ][ Video ]
2. Free and disturbed crystallisation  [ Instructions ][ Video ]
3. Preparation of soda by the Solvay method  [ Instructions ][ Video ]
4. Preparation of Mohr's salt  [ Instructions ][ Video ]
5. Electrolysis and metal coating  [ Instructions ][ Video ]
6. Preparation of copper(I) chloride  [ Instructions ][ Video ]
7. Preparation of copper(II) chloride  [ Instructions ][ Video ]
8. Preparation of copper by cementation  [ Instructions ][ Video ]
9. Reactions of metals in acids and bases  [ Instructions ][ Video ]
10. Preparation of coordination complexes–Preparation of Berlin blue  [ Instructions ][ Video ]
11. Preparation of coordination complexes–Preparation of aqua-tetraammine copper sulfate  [ Instructions ][ Video ]

Instrumental analytical chemistry

1. Determination of chlorides next to iodides by potentiometric titration  [ Instructions ][ Video ]
2. Determination of proteins by the Biuret method  [ Instructions ][ Video ]
3. Electrogravimetric determination of copper and lead in brass  [ Instructions ][ Video ]
4. SDS-PAGE electrophoretic separation of proteins  [ Instructions ][ Video ]
5. Determination of caffeine in beverages by HPLC-UV  [ Instructions ][ Video ]

Classical analytical chemistry

1. Determination of ammoniacal nitrogen by distillation  [ Instructions ][ Video ]
2. Manganometric determination of iron(III) chloride by the Reinhardt-Zimmermann method  [ Instructions ][ Video ]
3. Argentometric determination of chlorides  [ Instructions ][ Video ]
4. Determination of acetic acid content in vinegar  [ Instructions ][ Video ]
5. Iodometric determination of ascorbic acid  [ Instructions ][ Video ]
6. Determination of sulfur dioxide in wine  [ Instructions ][ Video ]
7. Determination of reducing carbohydrates in wine according to Schoorl  [ Instructions ][ Video ]
8. Acidimetry–Standardisation of the HCl volumetric solution  [ Instructions ][ Video ]
9. Alkalimetry–Standardisation of the NaOH volumetric solution  [ Instructions ][ Video ]

Organic and pharmaceutic chemistry

1. Preparation of cyclohexene  [ Instructions ][ Video ]
2. Preparation of 4-nitrophenol  [ Instructions ][ Video ]
3. Isolation and proof of citric acid  [ Instructions ][ Video ]
4. Preparation of benzyl alcohol and benzoic acid (Cannizzaro reaction)  [ Instructions ][ Video ]
5. Preparation of cinnamic acid (Perkin condensation)  [ Instructions ][ Video ]
6. Preparation of acetylsalicylic acid  [ Instructions ][ Video ]
7. Preparation of paracetamol  [ Instructions ][ Video ]
8. Preparation of eugenol  [ Instructions ][ Video ]
9. Preparation of 4-nitroacetanilide and 4-nitroaniline  [ Instructions ][ Video ]
10. Preparation of dibenzalacetone  [ Instructions ][ Video ]

Environmental chemistry

1. Extraction of a plant dye and its analysis by thin-layer chromatography  [ Instructions ][ Video ]
2. Determination of lead in soil by atomic absorption spectrometry  [ Instructions ][ Video ]
3. Determination of PAHs in surface water by GC-MS  [ Instructions ][ Video ]
4. Determination of COD in water by dichromatometry with spectrometric endpoint  [ Instructions ][ Video ]
5. Determination of biochemical oxygen demand (BOD5)  [ Instructions ][ Video ]
6. Sampling of water in wastewater treatment plant (WWTP)  [ Instructions ][ Video ]
7. Sampling of surface water  [ Instructions ][ Video ]
8. Soil sampling  [ Instructions ][ Video ]

Popularisation experiments in general chemistry

1. Preparation of nickel hydroxide  [ Instructions ][ Video ]
2. Crystallisation of oxalic acid  [ Instructions ][ Video ]
3. Zinc volcano  [ Instructions ][ Video ]
4. Sulfur volcano  [ Instructions ][ Video ]
5. Pharaoh's serpent  [ Instructions ][ Video ]
6. Golden rain–Preparation of lead(II) iodide  [ Instructions ][ Video ]
7. Silver reduction with copper metal  [ Instructions ][ Video ]
8. Savo-cola  [ Instructions ][ Video ]
9. Bengal flames  [ Instructions ][ Video ]
10. Reduction of copper from its oxide by in situ prepared hydrogen  [ Instructions ][ Video ]