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Silver nitrate electrolysis

K005/0396

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Credit

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

Caption

Electrolysis of silver nitrate solution, showing the reactions at the two electrodes. The anode is on the left and the cathode on the right. At the cathode, silver ions in solution receive electrons from the current, turning them into silver atoms. This leads to the deposition and growth of silver crystals (dark grey) on the cathode. At the anode, hydroxide ions in the water lose electrons, forming oxygen gas, which forms a stream of bubbles. This is a redox reaction, the silver ions are reduced (gaining electrons) and the oxygen is oxidised (losing electrons). This clip has been sped up by 400%.

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Downloadable Master

  • Duration: 00:00:10.18
  • Audio: No
  • Format: Photo JPEG 100% QuickTime movie

Original

  • Capture Format: Sony FS700

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