What's the Anode, Cathode, and Salt Bridge?

The basics of electric cells. Anode = Oxidation = Loss of Electrons. Cathode = Reduction = Gain of Electrons. Electrons flow through the wire from Anode to Cathode.
Check me out: www.chemistnate.com

[@MakUpLuv]

guys u have to remember, the cathode is positive and the anode is negative in galvanic cells, (reaction occurs spontaneously) while its the opposite in electrolytic cells as its non spontaneous.

[@boricuababyhuey7576]

GREAT POINT!

[@no-de3lg]

What does spontaneously means? And non spontaneous

[@MakUpLuv]

@@no-de3lg spontaneous means that a reaction occurs without any external energy source. E.g oxidation of iron where overtime it become rust. While non-spontaneous means that it Requires and external source e.g. voltage from a battery for a reaction to occur.

[@priyawadhwania7178]

@@MakUpLuv This means electrolytic cells are spontaneous, right?

[@Sanjeevkumar-lu8nv]

@@priyawadhwania7178 No,non spontaneous as they require external supply of batteries.

[@mrsemifixit]

It helps to think of this "The anode is positive in a device that consumes power, and the anode is negative in a device that provides power"
Where as in a battery the anode is "providing" electrons (negative) to the cathode.

[@xeraththunorson3234]

i dropped out of highscool. and theres a lot of basics i missed also. so as someone who is now trying to learn id like to say thank you your descriptions and visuals make this really easy to comprehend!

[@user-hs8yd2lc7y]

Did you get your degree?

[@bbbbbbbbbrittany]

This is exactly the explanation I was looking for. You are amazing!

[@mariosantos9928]

Watching this again before my CAPE exams tomorrow, helped a lot. Hopefully it comes in handy

[@SamuelOwusu01]

Thank you so much for this video, since I'm a visual learner, the colors did really help a lot. Thanks again.

[@stairway_to_kevin]

i've been having such a lame time trying to figure this out before I found this video. you've pointed me in the right direction. Now I just need to focus my learning on why one thing can be an anode while another is a cathode.
Example: theres a copper half cell and an aluminum half cell, and the items involved are Cu metal, Cu+ ions, Al metal and Al+ ions
(that is one bit of info that eludes my reasoning)

[@hillside6401]

Exactly how our earth works. Sun is the cathode moon is the anode and the oceans are the salt bridge. The ground has a measurable negative charge and our sky(firmament) has a measurable positive charge. Very nice video!

[@poere1234]

That makes zero sense you donkey. The earth isn't flat.

[@viksharma2009]

Extremely useful information, even to a layman. Thank you.

[@td6063]

great video, cleared up a lot of stuff in my head

[@alefiakothambawala5834]

This helped so much! Thank you!

[@raudelgutierrez962]

So simple and so informative, thank you so much

[@jodykarly101]

You're helping me not fail my GCSE's :3

[@archivistsethia9594]

Thank you! This was tremendously helpful!

[@amirreza310]

Based on my understanding: The anode is the positively charged electrode (feature point of view) but it is negative electrode (functionality point of view). Anode is losing electron; therefore, it is positively charged electrode.

[@timothyaaron8603]

One side positively charged with electrons, the other positively charged with protons, drop the useless words "positively charged" and just say: ..................................... anode = electron side, negative = electron side...... positive = proton side, cathode = proton side

[@idriisyasin6920]

Thanks for your best explaination.

[@dalsenov]

Great video! Very informative! Thank you.

[@asthavohra9466]

This was very helpful, thanks!

[@rtdpoe620]

Awesome explanation! Thank you

[@likepieordie1]

also known as a volataic/ galvanic cell. electrolytic being the other type, that requires current while this one produces it.

[@LiveGoodPhilippines888]

i really like this video. this made me understand how the photoelectrochemical works. thanks Sir. :)

[@agoodeinvestment]

thanks so much for the great video! I have one question, what is the liquid in the beakers?

[@Tomkens1985]

I think, that precise role of salt bridge is also worth an explanation.

[@vivvpprof]

EXACTLY what I came here for!! And didn't get an answer!! What happens to the anions, carrying electrons? Electrons go through the wire, sure, but anions go through the salt bridge, right? Or wrong?

[@NicoDevs1998]

The reasons for the Salt Bridge are:
1) It allows electrical contact between the two solutions.
2) It prevents mixing of the electrode solutions.
3) It maintains the electrical neutrality in each half-cell as ions flow into and out of the
salt bridge.

[@isaissb]

Thank you. Learning another language and came across "anode" in that language. Had to figure out what it is in English first! XD

[@AcousticLvr22]

great video! extremely helpful. thanks!

[@guitarttimman]

Great Job!

[@00marting]

Thanks. Great video. Aren't the electrons coming out of the cathode in a cathode ray tube ? And isn't the cathode negative in physics ? Is there a definition for cathode, anode, positive electrode, negative electrode which coherent both in chemistry and in physics ? Also, according to your definitions, isn't it peculiar that Cu2+, a positive ion, is attracted by a positive electrode ?

[@golddigger0325]

Very helpful, thanks!

[@maravetgirl]

Awesome! Thanks for explaining!

[@cesrai]

thanks your teaching is better than wikipedia

[@SirSkippy87]

Cathode is the reduction side and the anode is the oxidation side, however both can be either positive or negative. Depends on the cell type. For example, in a Galvanic cell, the anode is negative and the cathode is positive. In a electrolytic cell the anode is positive and the cathode is negative.

[@humnatariq520]

great teacher sir

[@mrsemifixit]

Is the cu2 -> cu and fe -> fe2 a result of simply connecting the two metals by a wire or is the electrolyte solution causing that and thus allowing electrons to flow?

[@emeldannadi1989]

Thank god I found you!!

[@user-hc4su1wg8h]

Thank you! It was really helpful.

[@Abdullah22497]

Thank you , you helped me a lot

[@cosmicsr6435]

TH-cam let recommend it after 8 years 🙏🙏

[@shivanganilohani5348]

thnx ..grtt job..............finally i got this concept

[@amirreza310]

For example, in gel electrophoresis, anode is considered as a positively charged electrode where negative DNA fragments attracts by the anode (the positively charged electrode) in the buffer solution.

[@MD964]

Thank you this was amazing

[@hameedamathtuber]

Very interesting and informative

[@kimyates6561]

I love your videos!!!

[@margaretashton2693]

Thanks so much! I finally get it. :)

[@SubeloEQ]

Super helpful, Thank you!

[@jamesbajande103]

Does voltage increase if you increase the amount of the cathode?

[@h3llo968]

nice video, except could you explain the salt bridge, what salts are used, why and where the positive and negative salts go to?

[@piinkbutteeerfly]

thank you very much ! this helped me understand it more (:

[@miguelgalarza5742]

Thank you sir.

[@babumanakkattu5160]

Thank you for this video

[@junk_bear]

WoW that amazing but I have a question how do we recharge them and how is it produced

[@shadhinmia284]

You are great vaiya.......

[@sixtiesqueen]

Thank you!

[@aiperthatgotmutatedbytruth5638]

omfg wonderful explanation!!!!

[@leormhandelacruz]

Hi! just a bit question. If the loss of electrons happens in the anode, does it mean that the electrons are being repelled by the anode?

[@davidg5189]

Thanks so much, solution to question one for my engineering materials 1 question

[@lisagy2000]

Thank you.

[@wombat7114]

Dude, this is amazing. You saved my ass :D

[@MichelleandAmanda]

same

[@PinkOinkz]

usually potassium nitrate KNO3(aq)
since nitrate is fairly unreactive

[@thelanner22b]

thanks for the video

[@legowar10]

Thank you

[@emilmontano1]

Thanks brother

[@yingzhenang7678]

Thank you so much!

[@yosimoran7584]

please let me know if the salt bridge may be used as a substitute for an ion exchange membrane for producing potassium permanganate in an electrolytic cell according this equation : 2K2MnO4+ 2H2O-> 2H2O +2 KMnO4 2KOH +H2
THANK YOU

[@mwaleed246]

thnx this helps a lot

[@cal7792]

when u hear his voice , u know you're in the right place !

[@Nubil8r]

I got a question, which ways the K ion go and where does the NO3 go?

[@Mattsaeus]

I thought the species that was being reduced always had to be on the right?

[@RNOCHANNEL_O2]

Thank you sir

[@yousorooo]

Thanks.

[@faridyusuf1841]

Why is the electrode where oxidation happens called an anode and where reduction happens is called a cathode? Does it have anything to do with the anode attracting anions and cathode, cations? If yes, could you kindly explain more about it? Thanks alot!
p.s. It's for an advanced physical chemistry module. Thanks

[@Mr.LaughingDuck]

I like your videos, but could you please organize them into their own kind of topic?

[@sethwoo8481]

Considering Fe is higher than Cu in the Electrochemical series, Fe definitely more electropositive than Cu hence it's easier for Fe to release electrons compared to Cu. By theory, electrons move from cathode to anode so it would be more convincing if the Fe electrode is the cathode and not the other way around as you've stated in the video.

[@MoreBlessedOfficial]

So the iron electrons end up turning into copper electrons. The copper electrons are dissipating in the solution but the Fe+2e- electrons (dissipated Iron) are given up and travel through the wire and then turned into solid copper electrons once inside the solution inside the copper beaker adding to the copper electrode? That’s how I understood this video correct me if I’m wrong, Thank you.

[@maximilianoprado5070]

Wowzers 10/10 video

[@bios546]

U're great!

[@bena1457]

Is there a difference between a cathode and anode in chemistry-related galvanic/voltaic cells than from a physics stand point?

[@yunsha9986]

according to IUPAC convention, you are supposed to place negative electrode on left side( or i think)

[@Liquoricilicious]

Shujaat Umarkhan Yes, it makes more sense (to me at least), if the cathode is on the right, because that's how you write the cell diagram.

[@roromomo971]

how does the salt bridge perform its function

[@Silvermeow]

So what would happen without the salt bridge? It just wouldnt continue? Or its would explode

[@yathishkarkera5419]

thank u very much................

[@reidwan3941]

why is the mass gain of the cathode always less than the mass loss by the anode? Pleases answer I need help

[@trsayurs]

Hey,
If we use aluminium electrodes, then?

[@Peewee0413]

Jindo isn't negative charge an abundance of electrons?

[@georgelouis6515]

Did you say you can make copper with this!? And what is the solution? Is it just water?

[@yousorooo]

What makes the electrons to come off?

[@marvodigwan5374]

wazi msee.. u'v helped m alot

[@fatimarahimi0861]

God bless you

[@gabrielleblanco6045]

So is the Cu(s) the cathode and the Cu+2(aq) the solution? And Fe(s) the anode and the Fe+2(aq) the solution?

[@roaaali8009]

thanks very much

[@justinmatthews2380]

I’m going for cp1 what should I keep in mind when I take the test

[@W75.]

Justin Matthews don’t fail

[@mrsemifixit]

So how does the salt bridge complete the flow of electrons? Reverses the flow of electrons back to the iron in opposite way?

[@Liquoricilicious]

mrsemifixit The electrons are not flowing in the salt bridge, as this would lead to short circuit. The solutions have to be neutral, so eg. when cations are dissolved, anions must flow in, vice versa.

[@nitishpradhan7215]

thanks brother

[@sunke88]

2:40. If the elctrons are getting pumped back into the plus side, wouldn't be the catode end? why are you pointing it towards the anode?

[@fakeaccount5311]

Thanks a lot

[@AroobaShah688]

gambart shutup great explanation helped a lot..... hope i remember this -_-

[@samdsouza8663]

bro can you PLEASSSSEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE!! explain redox couple :D

[@Ankuuuu16]

I can if you need any help

[@Yas-oz7nw]

خیلی ممنون . بسیار مفید بود

[@AliUchiha94]

Thank a lot

[@roger_is_red]

I wished you would have covered why positive ions flow from the anode to the cathode ?? since the cathode is positive how can this happen?

[@priyawadhwania7178]

I guess it is the electrons that are flowing, not positive ions...

[@roger_is_red]

@@priyawadhwania7178 The electrons flow from the anode to the cathode through the external load and the positive ions due so through the electrolyte

[@aedeceaecde5873]

cathode is negative and anode supposedly is the + positive isn't?

[@WishalSriRanganMU]

Not in voltaic cells. It is only like that in electrolysis

[@inayathmohammad713]

Wishal thanks bro... u cleared my big confusion

[@tokmol6549]

that is a galvanic( voltaic ) cell

[@mjayanthi8040]

@@WishalSriRanganMU thanks a lot

[@MasterTew]

nope