Galvanic Cells (Voltaic Cells) | Worked Example with Cathode, Anode, and Salt Bridge

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Instructor: Dave Carlson

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Best video I've seen explaining galvanic cells thoroughly and clearly. You are doing God's work

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so concise and clear, thank you !!!

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PremedHQ Science Academy : Very good video. Can this battery be recharged ? will the KCl do now move in reverse as you charge the battery?? Thanks.

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Hi I searched your channel for a video on Electrolytic cells but I couldn't find it. Do you have a video on that? Thank you so much!

[@ryanfranzese3282]

I’m confused about what you were saying regarding the greatest magnitude half reaction being the cathode end. The zinc half reaction has the highest magnitude in this example , but it’s the anode?

[@patrickbetyounan7235]

Why is a salt bridge needed? Why can't I place to KCL- sticks inside both beakers?

[@legomann1483]

What is the emax equaition he was using?

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will the salt bridge run out?

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yes eventually

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Ron Jeremy

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[@patrickbetyounan7235]

Sorry you lost me when you started speaking about current? What exactly is current made up of?

[@davidadams255]

Back in the day, current was measured as the movement of positive charge. This was due to a lack of understanding at the time. In reality, current is caused by the flow of negatively charged electrons. But because of tradition, we keep measuring flow as the movement of positive charge, even when no physical positively charged molecule is moving/present.
Basically: current is defined as the movement of positive charge, so it moves in the opposite direction that electrons move.