19.4 How to Calculate Standard Cell Potential | General Chemistry

Chad demonstrates how to calculate Standard Cell Potential (a.k.a. emf or voltage) from a Table of Reduction Potentials. He uses both of the commonly used equations and shows the difference between the two and where NOT to make a mistake.
Ecell = Ecathode - Eanode
Ecell = Ereduction + Eoxidation

The Standard Hydrogen Electrode (SHE) is also identified and its importance as a reference electrode is described. Finally, it is demonstrated how to use a Table of Reduction Potentials to identify the strongest oxidizing agent, the strongest reducing agent, and when two species will react spontaneously in a redox reaction.

00:00 Lesson Introduction
00:26 Introduction to a Table of Reduction Potentials
03:33 How to Calculate Standard Cell Potential Example #1
09:53 How to Calculate Standard Cell Potential Example #2
13:07 How to Calculate Standard Cell Potential Example #3
17:35 How to Identify Strongest Oxidizing Agent
19:04 How to Identify Strongest Reducing Agent
22:02 How to Identify Spontaneous Redox Reactions

[Roseshade]

One of these days I'll start watching videos like this *before* the last two days before the final. Thanks for making this easier to understand.

[DZZYGaming]

possibly the best channel on youtube for this sort of information, explains everything needed to know, thank you a million times over man!!!!

[beyde.]

Wow! This video was put together beautifully and I really appreciate you helping by making this topic simple for me to understand. This video has gotten me through the hardest times, every hurdle had in my life, I wouldn't be able to get through electrochemistry if it weren't for you Mr. Chad

[malibumouse]

4:08 OMG TYSM i've been looking at my questions wondering why they didnt change the sign but u cleared it up! You're a chad for this!

[JRaes]

I have already watched many of your chemistry lessons, they are of high didactic value. My compliments and all respect for your efforts. I am a retired engineer and still look with great passion to science (physics, mathematics, chemistry, computer science, etc.) Best regards!

[kartoffelkafer]

I could never find a better Chad! Thanks for making chemistry awesome!

[katierolicheck]

Thanks, Chad, your material has really helped me learn and understand my material in class better.

[michaelkelley]

Top two of the best chemistry channels out there! definitely helped me out alot!

[alessandrac]

thanks for simplifying this. when it comes down to it the math and the logic aren't that difficult, but i appreciate the clarity of your lecture (like all ur others)

[horsegirl]

Love this video and chanel... I'm so excited about the physics videos also being released, because I start that journey next semester.

[shabisepah]

Very Very Helpful. Thank you so much for such a good explanation. Now I completely understand REDOX reaction.

[dom]

Hi Chad. Is there any way we can donate through patreon or something? You've helped me so much :)

[kagamer]

Did you get a new camera? This video looks real sharp brotha. Thank you for doing what you do man

[JosephinePinel]

If you have a question that says /Hydrogen peroxide is added to an aqueous solution containing VO2+ ions. calculate the E cell value. Use your answers to predict wheather or not a reaction occurs.

Basically if it doesnt tell me if something is feasable or not how do I tell what is being oxidised and what is being reduced

[KenPfeffer-qv]

Chad is my hero! I wish that he was my chemistry professor.

[Userejxkwjdk]

ur a goat for this 🙏 thank you so much, your channel genuinely helps me much! you have a great talent for teaching that my professors don't have 😭😭

[annenamuwenge]

at 10:50, I'm confused on why the number is -0.74 and not -0.41 because that's what's shown in the data booklet

[RadvinSalari-ir]

Youre amazing you exactly said things i was struggling in

[petevenuti]

How does any of this work with organic batteries? Like the battery using the oxidation of hydroxyquinones to quinones? (I think it's otherwise known as the rutabager battery?)
I do not see a charge change for =O vs -OH groups. Does it matter if it's in aqueous vs non aqueous solution? Is there a table of redox potentials of covalently bound functional groups in organic molecules? Would an aromatic sulphur ylide in dsmo work similar to a quinone in aqueous solution electrochemically?

[benis]

Thank you brother the first part of the video probably saved 50% of my grade on this test. My teacher explained that concept so badly 😢