Introduction to Galvanic Cells & Voltaic Cells

This chemistry video tutorial provides a basic introduction into electrochemical cells such as galvanic cells also known as voltaic cells. A galvanic cell is device such as a battery which converts chemical energy into electrical energy. A galvanic is made using two electrodes known as the anode and the cathode. Oxidation occurs at the anode and reduction occurs in the cathode. The electrons are written on the right of an oxidation half-reaction and they are located on the left side of a reduction half-reaction. Oxidation involves the loss of electrons and reduction is associated with the gain of electrons. Electrons always flow from the anode to the cathode. The purpose of the salt bridge is to prevent the build up of charge. Cations flow through the salt bridge toward the cathode and anions flow toward the anode. This electrochemistry explains completely how a galvanic cell works. It discusses how to write the overall reaction from the half reactions and how to represent the cell using standard line notation or cell notation. The electromotive force of a galvanic cell is measured in volts and 1 volt is 1 joule per coulomb. Voltage represents the work that can be done per coulomb of electric charge. Electric current is the rate at which electric charge is transferred. This video discusses how to increase the voltage and current delivered by a galvanic cell.
Intro to Galvanic & Voltaic Cells:
• Introduction to Galvan...
How To Draw Galvanic Cells:
• How To Draw Galvanic C...
Standard Reduction Potentials:
• Standard Reduction Pot...
Cell Potential Problems:
• Cell Potential Problem...
Cell Notation Problems:
• Cell Notation Practice...
___________________________________
Concentration Cells:
• Concentration Cells & ...
Cell Potential & Gibbs Free Energy:
• Cell Potential & Gibbs...
Cell Potential & Equilibrium K:
• Equilibrium Constant K...
Nernst Equation:
• Nernst Equation Explai...
Electrolysis of Water:
• Electrolysis of Water ...
_____________________________________
Electrolysis of Sodium Chloride:
• Electrolysis of Sodium...
Electrolysis & Electroplating Problems:
• Electrolysis & Electro...
Electrochemistry Practice Problems:
• Electrochemistry Pract...
SAT Chemistry Subject Test Review:
• SAT Chemistry Subject ...
Carbon -14 Dating:
• Carbon 14 Dating Probl...
Beer Lambert's Law:
• Beer Lambert's Law, Ab...
______________________________________
Final Exams and Video Playlists:
www.video-tutor.net/
Full-Length Videos and Worksheets:
/ collections
Chemistry PDF Worksheets:
www.video-tutor.net/chemistry...

Пікірлер: 308

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    @TheOrganicChemistryTutor Жыл бұрын

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    Жыл бұрын

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    11 ай бұрын

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    @seungseungminji

    11 ай бұрын

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    @saido79692 жыл бұрын

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    @waynekottkamp8591

    2 жыл бұрын

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    3 ай бұрын

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    @yale3087 Жыл бұрын

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    Жыл бұрын

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    @legendvanderwaal3608

    10 ай бұрын

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    @adrianwabe5202 Жыл бұрын

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    Жыл бұрын

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  • @trfinl
    @trfinl Жыл бұрын

    In case someone hasn't already mentioned it, at 9:14 you mistakenly call the Zn 2+ an anion -- you correct yourself in the following discussion.

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    @seungseungminji

    Жыл бұрын

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    3 жыл бұрын

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    @remasalhawari8077

    3 жыл бұрын

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    3 ай бұрын

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    @leahshuster34123 жыл бұрын

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  • @DarkMatterr
    @DarkMatterr5 жыл бұрын

    I always use *Red Cat* to know that Reduction's at Cathode

  • @jackshayne1634

    @jackshayne1634

    5 жыл бұрын

    You can use "an ox" as well!

  • @DarkMatterr

    @DarkMatterr

    5 жыл бұрын

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    @strangeme8164

    5 жыл бұрын

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    @laura79613

    4 жыл бұрын

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  • @GM.Nobody

    @GM.Nobody

    4 жыл бұрын

    That only applies in galvanic cells right?

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    @staceyii73663 жыл бұрын

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    @ZombieFaceClause6 жыл бұрын

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    3 жыл бұрын

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    3 жыл бұрын

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    2 жыл бұрын

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    @ginarae30813 жыл бұрын

    I know you get millions of "thank you's" from people all over but you are AMAZING! Thank you so much!

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    @iluhyuhswag6 ай бұрын

    I've been trying to learn electrochemistry for 6 months now. I thank God for you!!

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    @nathanbowman13832 жыл бұрын

    Finals week anybody? I'm about to binge this man's videos for the next week.

  • @sgregory0753
    @sgregory07532 жыл бұрын

    This explained the galvanic cell better than my Chem teacher explaining it for an entire week

  • @Lightning_Dragon_
    @Lightning_Dragon_ Жыл бұрын

    Here's a tip from a fellow student to another, there is a good way to remember Oxidation = anode and Reduction = cathode. Using the phrase "an ox cared" You can know an=anode ox=oxidation and cared = ca and red which both respectively means cathode and reduction

  • @mosespumpuni2631

    @mosespumpuni2631

    11 ай бұрын

    Some books' got anode as positive and cathode as negative... it's so confusing 😕

  • @Lightning_Dragon_

    @Lightning_Dragon_

    11 ай бұрын

    @@mosespumpuni2631I think you might be getting it confused. Theres also a thing where electrons (negative charge) flow to cathode and positive charge flow to anode, which makes sense because anode is negative which attracts positive and vice versa. But the charge of the anode itself is always negative and cathode positive. Hope this helps.

  • @rjhick1

    @rjhick1

    9 ай бұрын

    @@mosespumpuni2631 That depends on the cell. Galvanic Cells Anodes are negatiive and positive cathodes. For electrolytic cells is flipped. The anodes are positive and cathodes are negatives. Still regardless dont pay attention to that. Oxidation happens at anodes, and reduction happens at cathodes regardless of its the cell is galvanic or electrolytic. Thats the part to remember

  • @rjhick1

    @rjhick1

    9 ай бұрын

    Thats good. Another good one is Red Cat. Reduction happens at cathode.

  • @Rumorthewitch
    @Rumorthewitch15 күн бұрын

    been staring at my chemistry book confused for days, watched the first ten minuted of this video and understood. thanks man, wonder how many people would fail chemistry without you.

  • @lexiszeua9241
    @lexiszeua92412 жыл бұрын

    Today we were doing electrolysis and i asked my chem teacher about this and they said that it wasn't in the syllabus and that if they explained it it would just complicate the learning of the chapter. Thanks for nourishing my curiosity✨

  • @funwithme403
    @funwithme4032 жыл бұрын

    You are honestly amazing, u teach me more in a whole day of ur videos than my chemistry teacher does in 9 months

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    @nooralemadi89504 жыл бұрын

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    @juliam20704 ай бұрын

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    @angelarosz82893 жыл бұрын

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    @shravjally48964 жыл бұрын

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    @nginasimzee431

    Жыл бұрын

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    @danieloconnell7097 Жыл бұрын

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  • @user-zx6uy9jq4o
    @user-zx6uy9jq4o11 ай бұрын

    I don't know whether my teacher is making it complicated or you are making it simple.

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    @ri_shu264 ай бұрын

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    @KDOERAK11 ай бұрын

    I am impressed: this is a very good video - clear and well told.👍👍

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    @miriamshuster63253 жыл бұрын

    Thank Gd for you!!!! You are the reason I get A's in chem

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    @markle33035 ай бұрын

    Even my experienced chemistry teacher used this video for his lesson, you deserve RESPECT!

  • @ddane6144
    @ddane61442 ай бұрын

    I would’ve totally failed in ap chem if I had not known you sir sending u so much respect

  • @GotYourWallet
    @GotYourWallet2 жыл бұрын

    Do the electrons travel only through the wire or will a small amount travel through the salt bridge? Edit: I just found the answer on stack exchange. A small amount of current will leak through the electrolyte. To counter this modern batteries have a membrane called a separator that allows ion exchange but has a much higher resistance to combat the flow of electrons.

  • @intuitivecontrolsystem4436
    @intuitivecontrolsystem44363 жыл бұрын

    Why nobody discusses the salt bridge in detail.

  • @gcinabantungozi8723

    @gcinabantungozi8723

    11 ай бұрын

    Dwift did

  • @linddddd

    @linddddd

    9 ай бұрын

    It’s used to prevent the mixing of the half reactions and balancing them out :)

  • @the_crackin3610

    @the_crackin3610

    9 ай бұрын

    To retain charge balance

  • @mattheq9930

    @mattheq9930

    7 ай бұрын

    @@lindddddactually its to retain the electron flow of the voltaic cell

  • @AlexIsPsychotic

    @AlexIsPsychotic

    6 ай бұрын

    ​@@mattheq9930that's the same thing

  • @aroraptor7550
    @aroraptor7550 Жыл бұрын

    Very good explanation! Thank you very much

  • @RogerRumbu
    @RogerRumbu7 ай бұрын

    Well presented - Thank you

  • @selamawitgebrewold4351
    @selamawitgebrewold43512 жыл бұрын

    thanks for the brief lesson

  • @legendvanderwaal3608
    @legendvanderwaal360810 ай бұрын

    He also has a soothing voice😊

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    @Somalidoc3216 жыл бұрын

    I love you!!! thank youuuuu for your time and dedication.

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    @AmessaluAGelaw2 жыл бұрын

    You are the smartest person to explain it in a simple way,,, you are the real academician bravo

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    @Dhikr3 жыл бұрын

    He deserves a teaching award

  • @legendvanderwaal3608

    @legendvanderwaal3608

    10 ай бұрын

    He deserves a nobel prize award...he's been saving students life since ages🎉...dude's a legend💥

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    @L0ttery_4 жыл бұрын

    I owe this video so much

  • @judyamr7663
    @judyamr76637 ай бұрын

    perfect explanation ❤️

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    @egbujorandrew Жыл бұрын

    Thanks for this It helped a lot 👍

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    @wilsonmapesa7985 жыл бұрын

    My best tutor

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    @XTheXRizzaX6 жыл бұрын

    I wish this video came out sooner. Just had my final a couple days ago. Regardless, great video mate

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    @erilove1

    6 жыл бұрын

    Rizza same

  • @Nby-DIH
    @Nby-DIHАй бұрын

    Thanks a lot, and have a great day every day!!

  • @JayJay-ki4mi
    @JayJay-ki4mi6 күн бұрын

    Here because I'm building earth batteries. Needed to recap on stuff I learned and forgot 20 years ago. The salt bridge isn't required in an earth battery because the soil does the same job :) Thank you.

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    @lexielliott30633 жыл бұрын

    I owe this guy my life

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    @bushranaseer28652 жыл бұрын

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    Thanks a lot man❤

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    @altayebofficial3 жыл бұрын

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  • @kanishknarra1386
    @kanishknarra13863 ай бұрын

    Very good explanation.

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    @admissionuniversity57534 жыл бұрын

    No word for you are incredible

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    @shahlalkhan1916 Жыл бұрын

    very nice,and clear concepts of the teacher. it's easily understandable to a commomn and verage minded person. This is greatest success of a good teacher Hope to receive such type of lectures. S Sir please explain cathodic , ICC protection of Marine ships to protect submesed part of the ships like Hull, Rudder, propeller, shaft ofthe main propelling engine,

  • @michael42158
    @michael421582 жыл бұрын

    It is the ions from the salt bridge which flow into the two 1/2 cells to maintain electroneutrality.

  • @laura79613
    @laura796134 жыл бұрын

    Concerning the salt bridge, if the zinc ions flow to the cathode side, will the copper electrode now get coated by zinc metal?

  • @jaceduhon3118

    @jaceduhon3118

    3 жыл бұрын

    No. The zinc ions will combine with the sulfate ions from the copper side and form a salt

  • @gihanvimukthi8774
    @gihanvimukthi87743 жыл бұрын

    Thanx bro love you ❤️❤️❤️

  • @Keato20
    @Keato202 жыл бұрын

    I just have one question. Hypothetically, if we had a Mg and Zn simple cell (one beaker) in a dilute acid, would the electrons on Mg go to Zinc or would the Mg react and reduce the H+ ions in the acid instead. I am presuming Mg would directly reduce H+ because Zinc is more reactive than Hydrogen. Also there is a bigger difference in reactivity between H+ and Mg too. ???????

  • @cabdisalaanaden3447
    @cabdisalaanaden34472 жыл бұрын

    thanks you very much teacher from somalia

  • @user-xc6op6lv1y
    @user-xc6op6lv1y Жыл бұрын

    easy to understand👍

  • @WastedElephant
    @WastedElephant2 жыл бұрын

    So how do you build the salt bridge? And how do you stop the electrons from flowing through it instead of through your load?

  • @user-fc9bg6ns1g
    @user-fc9bg6ns1g6 ай бұрын

    you are a legend sir

  • @user-ou5vd7wr6c
    @user-ou5vd7wr6c13 күн бұрын

    this guy keeps saving me 😇

  • @lorokenyi8688
    @lorokenyi86883 жыл бұрын

    Deserve my subscription

  • @kelvin1518
    @kelvin15184 жыл бұрын

    hello,is this how the lead acid battery terminals named or does it mean ,cathode is the positive terminal of a lead acid battery and the anode is the negative terminal? or does it mean anode is the positive terminal of the battery and the cathode is the negative terminal of the battery?

  • @LowkeyySaad
    @LowkeyySaad Жыл бұрын

    Thanks sir ❗️♥️

  • @user-xb4xe3lc5g
    @user-xb4xe3lc5g7 ай бұрын

    You are the man❤

  • @stephenhatcher1103
    @stephenhatcher11033 жыл бұрын

    you just saved my life

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    @raymondyang30974 жыл бұрын

    you are legit better than my teacher

  • @arialshaine7043
    @arialshaine70432 жыл бұрын

    Thank you so much

  • @NoName-kt4ws
    @NoName-kt4ws Жыл бұрын

    to remeamber it just use "AN-OX" and "CA-R"

  • @legendvanderwaal3608
    @legendvanderwaal360810 ай бұрын

    This man be good❤💥😎

  • @eddiek8950
    @eddiek8950 Жыл бұрын

    Legend of all seasons 🇿🇲😹 ZAMBIANS love you sir.

  • @aartimeetsworld8538
    @aartimeetsworld85384 жыл бұрын

    At 12:11 the Electrode Potential for the Oxidation of Zn should be -0.76 V not +0.76V (Oxidation electrode potential is always more negative than that of the Reduction half cell)

  • @legendvanderwaal3608

    @legendvanderwaal3608

    10 ай бұрын

    He is using the reverse form of the equation.....you're talking about reduction potential but the reaction/equation is an oxidation reaction...please do you get it??

  • @marthadiabla2062
    @marthadiabla20623 жыл бұрын

    Wow thanks so much

  • @itzshortclipz8016
    @itzshortclipz80164 жыл бұрын

    excuse me i’d like to make a correction at 9:13 aren’t cations positively charged ions? think, ca+ion (plus for positive).

  • @blomblorpf

    @blomblorpf

    4 жыл бұрын

    He did say it wrong, but then a few seconds later correctly again.

  • @HusaynTechOfficialChannel
    @HusaynTechOfficialChannel2 жыл бұрын

    Thank you 😊

  • @aliahmad32551
    @aliahmad32551Ай бұрын

    Thank youuuuuuuuuuu!

  • @AokijiKuzan8
    @AokijiKuzan8 Жыл бұрын

    Finally getting the hang of this topic 😸😂 thanks to JG

  • @userr_aa
    @userr_aa3 жыл бұрын

    you should be blamed for making me fallen in love with chemistry. Now, how can I break up.

  • @user-me2qd4bl3f
    @user-me2qd4bl3f Жыл бұрын

    Great ❤️

  • @franc1159
    @franc11594 жыл бұрын

    Doesnt voltage travel from positive to negative?

  • @arpitkumarsahoo4172
    @arpitkumarsahoo4172 Жыл бұрын

    I dont get the electric potential part 10:50 . If the zn soln has a potential 0.76 and cu soln has a potential of 0.34, then shouldn't the potential difference be the total voltage rather than adding it ? The vid made everything very clear. thanks for that

  • @mariakime1943
    @mariakime19433 жыл бұрын

    How do we know to add the sulfate when it is not in the reaction?

  • @saviole9370
    @saviole93704 жыл бұрын

    You are my online education #coronavirus

  • @arif_inspiron
    @arif_inspiron Жыл бұрын

    can we take any other metal aq. solution instead of Zn(SO)4 solution in the 1st pot?

  • @jubjub567
    @jubjub5674 жыл бұрын

    How come in a diode the anode is positive and the cathode is negative?

  • @vfxentity
    @vfxentity2 жыл бұрын

    Thank you sir