Credit: RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA/SCIENCE PHOTO LIBRARY

Caption: Demonstration of the change in conductivity of a solution when a strong 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, which in this case it does. Strong acids are those dissociate almost completely in solution, producing a large number of free ions. A current is the movement of charged ions, and the presence of ions here is seen by the flowing current and lit bulb. For the same experiment with a weak acid, see clip K004 3149.

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Keywords: acidic, adding, bench, bulb, chemical, chemistry, circuit, conducting, conduction, conductive, conductivity, demonstrating, demonstration, education, educational, electricity, experiment, flowing, glassware, ionised, lab, laboratory, light on, lit, pipette, reacting, reaction, school, science, strong acid, strongly, test, testing

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Conductivity with strong acid

K004/3150 Rights Managed

Downloadable master

Duration: 00:00:10

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 275.5M

Original

Capture format: Sony FS700

Codec: Apple ProRes 422 (HQ)

Interlaced: Yes

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