Conductivity with weak acid

Référence de la vidéo 11937484
Demonstration of the change in conductivity of a solution when a weak acid is added. In the solution are two wires, connected to a circuit containing a battery and a light bulb. If a current flows, the light bulb will light up. In this case it does not. Weak acids are those that do not dissociate much in solution, producing relatively few free ions. A current is the movement of charged ions, and the lack of ions here is seen in the lack of current flowing. For the same experiment with a strong acid, see clip K004 3150.
Licence : Droits gérés
Crédit : Science Photo Library / RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA
Model Release : Non requis
Durée : 7 Secondes
Aspect ratio : 16/9
Restrictions : -

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