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O-Level Chemistry . IP Chemistry: Selective Discharge of Ions in Electrolytic Cells - Part 1 

SimpleChemConcepts - Online Chemistry Videos
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#seanchuachemistry #olevelchemistry #ipchemistry
This video is Part 1 of a two parts series on the Selective Discharge of Ions in Electrolytic Cells.
It is based on what we share with our Secondary 4 GCE O-Level Pure Chemistry and IP Chemistry students in our weekly Sec 4 Pure Chemistry Tuition Classes.
In an aqueous solution, more than one type of cation and anion are present in the electrolyte. However, only one cation and one anion are preferentially or selectively discharged during the process of electrolysis.
If the electrodes used during electrolysis are inert, the ions being preferentially discharged will depend on three factors:
1) Selective Discharge of Cations
2) Selective Discharge of Anions
3) Effect of Concentration on the Selective Discharge of Anions
All the three factors will be clearly explained in a step-by-step manner and examples will be given so that you can apply immediately.
To learn more about Electrolysis and other basic Chemistry concepts, visit our blog at www.SimpleChemConcepts.com
See you there! Discover how you pass Chemistry with distinction
For more O Level Pure Chemistry. IP Chemistry learning resources, go to www.SimpleChemConcepts.com

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24 апр 2018

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Комментарии : 69   
@ramanahlawat398
@ramanahlawat398 4 года назад
sir can u please upload some videos for ionic equilibrium. Your explanation is amazing and to the point
@bmzaron713
@bmzaron713 2 года назад
Man this is exactly the video I was hoping to find on electrolysis.. I liked how you brought up the 'more reactive' topic of metals.. I think that terminology makes sense for displacement reactions/ oxidation of metals but with the cathode interaction, it helps me to think of the electronegativity of the cation in question/ which has a greater 'pull' of electrons.. Man this video was so great man! Thank you so much
@rebeccalam1068
@rebeccalam1068 3 года назад
thank you So much for this explanation sir. Much easier to comprehend than my textbook
@SimpleChemConcepts
@SimpleChemConcepts 3 года назад
You are most welcome
@phyllisnchimunya
@phyllisnchimunya 8 месяцев назад
Amazing, you are great at explaining🎉.
@meowmeow-dw3bi
@meowmeow-dw3bi 4 месяца назад
sir you're excellent.
@user-qs5tq5xq2l
@user-qs5tq5xq2l Месяц назад
amazed by how good u explained
@seemabatool2552
@seemabatool2552 6 лет назад
Good video ,liked
@lei9834
@lei9834 11 месяцев назад
bro is a lifesaver 🫰🫰🫰
@josephnandhubu2557
@josephnandhubu2557 Месяц назад
It's just great🎉🎉
@kingslayer69got79
@kingslayer69got79 2 года назад
Hope you are still posting cause this helps
@chenukasarathchndra8394
@chenukasarathchndra8394 5 лет назад
thank you your video was very helpful
@shanishanika7419
@shanishanika7419 5 месяцев назад
Thank you very much sir ♥️It's very easy to understand chemistry
@himayasandini8003
@himayasandini8003 2 года назад
The best explanation I hv ever heard bout electrolysis .Thank you so much sir ,really helpful .
@SimpleChemConcepts
@SimpleChemConcepts 2 года назад
Thanks and welcome
@fatemaabdulla2728
@fatemaabdulla2728 5 лет назад
Luvd it
@ling6365
@ling6365 3 года назад
Thankyou for teaching...I understand more now:)
@SimpleChemConcepts
@SimpleChemConcepts 3 года назад
Great!
@jurellejohn
@jurellejohn 3 года назад
Thanks so much, I understand way better now👍🏾
@SimpleChemConcepts
@SimpleChemConcepts 3 года назад
Great!
@swagotosurjodutta7341
@swagotosurjodutta7341 3 года назад
Thank you very much.
@dwivedidivyanand971
@dwivedidivyanand971 2 года назад
I really appreciate your efforts sir... sorry for not being ubiquitous. I just loved the way of your teaching. Understood the whole concept at once. Thanks a lot sir!. 🖤🖤
@SimpleChemConcepts
@SimpleChemConcepts 2 года назад
You are most welcome
@shubhrajitsadhukhan3592
@shubhrajitsadhukhan3592 4 года назад
How does this apply for chlor-alkali process??
@bk5265
@bk5265 3 года назад
Thank you ever so much, much love👍👍
@SimpleChemConcepts
@SimpleChemConcepts 3 года назад
You are so welcome
@Affan_911
@Affan_911 11 месяцев назад
in the text book Ca is above Na in the series,not sure which one is correct
@LuyandoMbulo-px2sk
@LuyandoMbulo-px2sk Год назад
Best explanation ever!!!
@SimpleChemConcepts
@SimpleChemConcepts Год назад
Glad it was helpful!
@AdityaSingh-uh4wf
@AdityaSingh-uh4wf 2 года назад
Wonderful explanation!
@SimpleChemConcepts
@SimpleChemConcepts 2 года назад
Glad it was helpful!
@amnaimran5537
@amnaimran5537 3 года назад
Thank you very much for all of the lecture
@SimpleChemConcepts
@SimpleChemConcepts 3 года назад
You are welcome
@freedomfarter2037
@freedomfarter2037 2 года назад
thank you so much! this was so helpful
@SimpleChemConcepts
@SimpleChemConcepts 2 года назад
You're so welcome!
@rollypolly6014
@rollypolly6014 3 года назад
Very good
@arsemaworkneh9236
@arsemaworkneh9236 4 года назад
It was very helpful thank you
@SimpleChemConcepts
@SimpleChemConcepts 3 года назад
Glad it was helpful!
@fake2044
@fake2044 2 месяца назад
why does concentration only affect discharge of anion but not cation?
@johnlinda9734
@johnlinda9734 3 года назад
why sulfate and nitrate ions are not discharged even at high conc?
@alassansaine
@alassansaine 3 года назад
Great video
@SimpleChemConcepts
@SimpleChemConcepts 3 года назад
Glad you enjoyed it
@spamshay7779
@spamshay7779 3 года назад
Woww it's useful. Recall back wat i hv learnt in SPM, But i forgot dy ahahahha. Tqvm for this video
@SimpleChemConcepts
@SimpleChemConcepts 2 года назад
Glad it was helpful!
@mandadongre4364
@mandadongre4364 4 года назад
Thnx
@zenixlo
@zenixlo 2 месяца назад
Hi, its called GCSE chemistry now.
@johnpraise1856
@johnpraise1856 Год назад
💜
@swathinimurugan7343
@swathinimurugan7343 4 года назад
Nice mernn
@luckykazivlog8782
@luckykazivlog8782 3 года назад
😍❤👍
@WazhaNzwaa
@WazhaNzwaa Год назад
danko🌍
@SP-wr4jt
@SP-wr4jt 5 лет назад
😍😍😍😍😍
@sherazmalik9647
@sherazmalik9647 4 года назад
Can you please explain why metals lower down in the reactivity series( electrochemical series) are preferentially discharged in electrolysis
@willyou2199
@willyou2199 3 года назад
This question difficult to answer. If you'd like the correct answer you'll have to go to reduction potentials, the underlying mechanism is deep quantum mechanics. Here in Os they just give it to you as fact and you swallow and regurgitate. But to answer your question, i have a pragmatic way to think of this. Take for example 2 cations compete to be discharged, say K+ and Na+. Both are reduced and discharged into K and Na atoms. But because Potassium can displace sodium in reactions, K will again displace other Na+ ions to become K+ while the Na+ becomes Na. What happens is regardless, you'll end up with more Na atoms than K atoms. This is what realizes as "preferentiality" in the macroscale.
@willyou2199
@willyou2199 3 года назад
This is also why, say dilute aqueous solutions of NaCl liberate O2 at anode, while conc aqueous NaCl liberate Cl2. Its ultimately OH- and Cl- competing, and while there's some electro potential at work, but because there are so many more OH- than Cl- in dilute solutions, OH- wins by simple probability. Conversely conc solutions Cl- wins, and Cl2 is unable to displace OH from H2O directly, which again lends it dissimilar behavior from cations; that concentrations cannot affect cation discharge but can affect anion discharge.
@adityaswaroop7430
@adityaswaroop7430 2 года назад
@@willyou2199 Unlike going to deep mechanic we can just comprehend in a way like ease of discharge corresponds to the gain of electron. If ease increases down the series the potential to gain electron increase.. That's why Cu+ having more ease or electrochemitivity than Na+ have more potential to becone Cu than Na or Na becomes ion much more faster than Cu takes to become an ion.
@LuyandoMbulo-px2sk
@LuyandoMbulo-px2sk Год назад
👏👏
@the21podcast
@the21podcast 3 года назад
thanks sir it helped a lot
@SimpleChemConcepts
@SimpleChemConcepts 3 года назад
Glad to hear that
@rithikars
@rithikars Год назад
bro u made me think there was a fly on my computer
@anjanaprabath9664
@anjanaprabath9664 3 года назад
i was troubled when my teacher told that clorine will always dichrge first when in an aqueous solution. is it true i am really confused. can you pls help.❤❤💕💕😥
@RafidBlog
@RafidBlog Год назад
OMG same LOL
@RafidBlog
@RafidBlog Год назад
Are u clear now?
@vikramkashyap1887
@vikramkashyap1887 2 года назад
From India
@mathscook437
@mathscook437 3 года назад
Can u pls say that zebra one by typing.. Pls
@shamsadjahan5566
@shamsadjahan5566 3 года назад
Pls stop calling me a zebra instead tell Laura how couple strengthens gold.
@SimpleChemConcepts
@SimpleChemConcepts 3 года назад
Please Stop Calling Me A Zebra Instead Tell Laura How Copper Strengthens Gold
@murungigeofrey7482
@murungigeofrey7482 2 месяца назад
your speedy
@monetnigusee7649
@monetnigusee7649 2 года назад
please work on your pronounsation
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