BC
DANIELL CELL
Mod. CB-IN-81/EV
CHEMISTRY
DESCRIPTION
This kit enables to carry out the experiment of Daniell cell. This
cell consists of two galvanic elements (half cells) each half cell
is a metal foil immersed in a saline solution of the same metal.
These two elements are connected via a salt bridge (U-shaped
tube full of a concentrated solution of KNO3) that enables the
ion migration so that the solutions can be kept neutral, from an
electric point of view, without being completely mixed. Some
electric wires connect these two metal foils with an external
circuit including a multimeter.
This circuit will be crossed by the electrons that leave the
electrode where they are more numerous (that is the electrode
of the half cell of oxidation - anode), to reach the electrode of
the half cell of reduction (cathode). The multimeter enables
to measure the output e.m.f. When the system attains its
equilibrium, this process ends.
TRAINING PROGRAM
• Half cells: Zn // Cu
• Half cells: Mg // Cu
COMPONENTS
47A-E-BC-CBIN81-0
- Foils of copper, zinc, magnesium
- Solutions of 0.1 M of copper(II) sulfate, zinc sulfate,
magnesium sulfate
- Concentrated solution of ammonium chloride
- Voltmeter
- Tester
- Connecting cables
- Glassware
BC 82
SUPPLIED WITH
• THEORETICAL - EXPERIMENTAL
HANDBOOK
ELETTRONICA VENETA S.P.A. - 31045 Motta di Livenza (TV) Italy - Via Postumia 16 - Tel. +39 0422 765 802 - Fax +39 0422 861 901 - E-mail: export@elettronicaveneta.com