19.3b Cell Notation & Cathodic Protection | General Chemistry

Chad provides a succinct lesson on Cell Notation and Cathodic Protection. In proper cell notation the anode is written on the left and the cathode on the right, just as is done with diagrams for galvanic cells. Two vertical slashes are drawn in between the notation for the anode and cathode to represent the salt bridge, and a single vertical slash is drawn to separate components within each half cell that are in different phases.

Cathodic protection is then described in which iron is made the cathode in a reaction between oxygen and a more active metal (like zinc). This prevents the iron from being oxidized (i.e. prevents corrosion) and has a variety of industrial applications.

00:00 Lesson Introduction
00:28 Cell Notation for Galvanic Cell Example #1
02:43 Cell Notation for Galvanic Cell with Platinum Electrode
05:00 Cathodic Protection

[horsegirl]

This is great! All of these videos help me with my Chemistry 2 class at my university. I have managed to keep a 107% average grade thanks to these...

[nurwazwaz]

chad youre literally a life saver, my chem professor is not the greatest but these videos are truly saving my grade so thank you. But just to be clear Iron is acting like the inert cathode protecting itself from rusting but also helping with the transfer of zincs electrons?

[rehdiate]

Thank you so much for making these Cannot express how helpful they have been

[toolsstop]

I suspect the mic was not working properly in this video... lol great vid love what you do. Should i watch these videos for IB chem?

[ankitasingh-ww]

Thankyou sir
Please 🙏🙏make a video on solid state.