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General Catalogue Chemistry - BECO Internacional LTDA.

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electrochemistry<br />

Practical experiments<br />

664 395<br />

Electrochemistry workplace<br />

Scope of delivery<br />

2 Cell batteries made of chemical-resistant<br />

plastic. They can easily be unscrewed and<br />

disassembled for cleaning. Filter paper is<br />

used as the membrane between the cells.<br />

Four galvanic cells can be set up simultaneously<br />

18 Plate electrodes (28 x 43 mm) which fit into<br />

the cell compartments described above,<br />

made of seven different materials: Cu<br />

(4 electrodes), Zn (4), Fe (2), Ag (3), C (graphite,<br />

2), Pt (mesh electrode, 1), Ni (mesh<br />

electrode, 2).<br />

2 Plastic plates and Mg tape for making Mg<br />

electrodes.<br />

3 Storage containers for electrodes which<br />

must be kept submerged in liquid during<br />

storage.<br />

1 Abrasive stone for cleaning the electrodes.<br />

1 Set of paper diaphragms (100 sheets).<br />

4 Droppers with rubber bulbs.<br />

1 Manual (> 668 421)<br />

Additionally recommended:<br />

(> 664 381) Clear PVC cover<br />

668 111<br />

664 395<br />

Instructor's manual<br />

“Introduction to Electrochemistry“<br />

112 pages, A4 size, in German.<br />

Instructor's manual for a complete course in<br />

electrochemistry, designed for advanced<br />

secondary education. It contains all the theoretical<br />

background and evaluations of the 17<br />

experiments which can be conducted with the<br />

electrochemistry work place.<br />

664 394<br />

Measuring unit for electrochemistry workplace<br />

The measuring unit is inserted in the compartment<br />

of the workplace provided for that purpose<br />

to enable mesurement. The measuring unit<br />

can also be used independently of the electrochemistry<br />

workplace.<br />

Scope of delivery<br />

1 Measuring instrument for virtually currentless<br />

voltage measurement from 1 mV to 10<br />

V, switchable in 7 measuring ranges<br />

Internal resistance approx. 10 8 Ω<br />

1 Motor with disk as current indicator<br />

(max. 3 V), for demonstrating flow of current<br />

in fuel cells<br />

4 Connecting leads with croc-clips<br />

1 Plug-in supply unit for connection to 230 V<br />

668 422<br />

24 LEYBOLD DIDACTIC · GENERAL CATALOGUE CHEMISTRY<br />

664 394<br />

Experiment manual<br />

“Experiments in Electrochemistry“<br />

32 pages, A4 size.<br />

This manual is to be used as a workbook and<br />

thus contains only those parts from the corresponding<br />

instructor's manual (> 664 111)<br />

which are relevant to the experiments themselves.<br />

The manual is included in the electrochemistry<br />

work place (> 664 395).<br />

Electrochemical potentials<br />

Daniell cell<br />

Voltage measurements on simple galvanic<br />

cells<br />

Standard potentials of metals and nonmetals<br />

Standard potential of the Fe2+ /Fe3+ redox pair<br />

Nernst equation for concentration chains<br />

Influence of precipitation and sequestration<br />

on the voltage of a concentration cell<br />

Determining solubility products and dissociation<br />

constants<br />

Determining the potential of a silver/silver<br />

chloride electrode<br />

pH values and redox potentials<br />

Measuring the pH values of various<br />

salt solutions<br />

Acid-base titration<br />

Redox titration<br />

Applied electrochemistry<br />

Leclanché cell<br />

Lead acid battery<br />

Fuel cells<br />

Electrochemical corrosion of iron<br />

664 381<br />

Clear PVC cover<br />

For dust-proof storage of the electrochemistry<br />

work place and for stacking in a cabinet.

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