so good, make really sense. however, some points you should points out that may confuse some student with poor basic knowledge about the electrolysis. for instance, the rule of production at the electrodes, why hydrogen is produced and chlorine is produced
Hi Kira. Good to know that you find the video useful towards your learning. However, it seems like you are still not very clear about Simple Cells. Based on your comment, it seems like you are confused between Simple Cells and Electrolytic Cells. They work differently. The term "electrolysis" means the use of electricity to electricity to decompose an electrolyte. Also, this video is meant for students taking basic Chemistry syllabus such as GCE O-Level Pure Chemistry in Singapore. Note that it does not comprehensively show all the intricate details on how the Simple Cells work. If you would like to find out more about Electrolytic Cells and Simple Cells at this basic level, you can read my blog posts or watch my videos at www.simplechemconcepts.com/videos/ Note: Chlorine is not produced in this particular simple cell. The" actual" details on how the cells work are only discussed when we learn more advanced concepts in Advanced Chemistry syllabus such as the GCE A-Level H2 Chemistry syllabus in Singapore. Over there, we will use something called Standard Electrode Potentials to discuss the redox reactions involved in both the Electrolytic Cells and Simple Cells. For anyone who is interested to find out more about the strategies and concepts in Advanced Chemistry, do visit my blog www.ALevelH2Chemistry.com. Do continue to learn Chemistry with understanding, Sean Chua | WinnersEducation.com
Dear Sir, thank you for the insightful video. Getting ready for O-levels amidst the COVID-19 scare in 2020. I have a question. At 9:50 you have drawn the small battery in which the electrons are moving from the positive to the negative according to the arrows. However, in the circuit you have labelled the arrows moving from negative to positive. Which one is correct?
Hi Angelino, I supposed you are talking about the "small red battery" which i drew. That is used to help us decide the charges of the two electrodes. Everything presented in the video is correct. Note that one of the application of Simple Cells is in Batteries and you learn in basic Physics/Science classes (Sec 1/2 if you are based in Singapore) that electrons always travel out of the negative terminal of the battery, and returns back at the positive terminal. Hope this is clearer to you now. You can visit my Basic Chemistry blog www.SimpleChemConcepts.com (written based on GCE O-Level Pure Chemistry and IP Chemistry syllabus content) for more tips and discussion of Chemistry concepts). Meanwhile, stay safe and continue to learn with understanding. All the best for your upcoming O-Level examination. To Your Academic Success in Chemistry, Sean Chua
hello, thank you for your video! may I ask if the anode in simple cells will always discharge/oxidise, since the metal at the anode is always more reactive than the cathode? thanks!
Hi Sughra Zulfiqar, this is a very good question. Many students are confused between Simple Cells (also known as Galvanic Cells, Electric Cells and Voltaic Cells) and Electrolytic Cells. The charges on the cathode and anode for the two different cells are different/opposite. For Simple Cells: Cathode (+) and Anode (-) For Electrolytic Cells: Cathode (-) and Anode (+) Students are confused because they tend to just memorise and regurgitate, instead of understanding the underlying concepts on how they work. For Simple Cells, it involve spontaneous reaction whereby Chemical Energy is being converted into Electrical Energy. For Electrolytic Cells, it involve non-spontaneous reaction whereby Electrical Energy is being converted into Chemical Energy. You can refer to the blog posts and videos on my Basic Chemistry website www.simplechemconcepts.com/?s=electrolysis to understand more about how each type of cells work as well as their similarities/differences. There's quite a number of strategies and analogies/mnemonics which i shared in my blog. To Your Chemistry Success, Sean Chua
It did. Zinc loses electrons [oxidation occurs]. H+ ions gain electrons [reduction occurs]. Redox Reaction occurs whereby both oxidation and reduction occurs simultaneously in a Simple Cell. It is a spontaneous reaction.
I am a little confused, dont electrons move from positive to negative electrodes normally? In all the books I have studied for IGCSE all of them say positive to negative
Electrolyte no copper ions to be discharged. Only positive sodium and hydrogen, and since hydrogen is lower in the series, it is selectively discharged. If electrolyte is aq copper chloride, then copper will be discharged.
honestly the best video on simple cell. it covers everything needed to know about it. great job
Thanks! I now understand. I''ve always confused the cathode for the anode
Glad I could help!
covered A to Z of the topic. thank you so much sir, from Bangladesh
Love this .....comprehensive 100%
Glad it was helpful!
thanks so much GOD BLESS THE WORKS OF YOUR HANDS from UGANDA
Thank you so much you've helped me understand something that I've struggled with for a long time😍😍😍
Happy to help!
Thankyou so much! This helped me alot for tomorrow's exam!
I was so confused, god bless you sir!!
OMG THANK YOU SO MUCH MY TA1 IS TMR BUT I KNOW NOTHING THIS HELPED SO MUCH!!
Mind blowing lecture sir love from india
You saved the day❤
Thanks,so much,you explained better than my teacher!💙
You're welcome 😊
so good, make really sense. however, some points you should points out that may confuse some student with poor basic knowledge about the electrolysis. for instance, the rule of production at the electrodes, why hydrogen is produced and chlorine is produced
Hi Kira. Good to know that you find the video useful towards your learning.
However, it seems like you are still not very clear about Simple Cells.
Based on your comment, it seems like you are confused between Simple Cells and Electrolytic Cells. They work differently. The term "electrolysis" means the use of electricity to electricity to decompose an electrolyte.
Also, this video is meant for students taking basic Chemistry syllabus such as GCE O-Level Pure Chemistry in Singapore. Note that it does not comprehensively show all the intricate details on how the Simple Cells work. If you would like to find out more about Electrolytic Cells and Simple Cells at this basic level, you can read my blog posts or watch my videos at www.simplechemconcepts.com/videos/
Note: Chlorine is not produced in this particular simple cell.
The" actual" details on how the cells work are only discussed when we learn more advanced concepts in Advanced Chemistry syllabus such as the GCE A-Level H2 Chemistry syllabus in Singapore. Over there, we will use something called Standard Electrode Potentials to discuss the redox reactions involved in both the Electrolytic Cells and Simple Cells. For anyone who is interested to find out more about the strategies and concepts in Advanced Chemistry, do visit my blog www.ALevelH2Chemistry.com.
Do continue to learn Chemistry with understanding,
Sean Chua | WinnersEducation.com
sir, why do hydrogen ions receive electrons over sodium ions?
I had one question
Why is the zn electrode getting oxidised,do we have to apply energy to it.
Great explanation!!!
Thanks a lot dude! You’re amazing
Glad I could help!
Dear Sir, thank you for the insightful video. Getting ready for O-levels amidst the COVID-19 scare in 2020. I have a question. At 9:50 you have drawn the small battery in which the electrons are moving from the positive to the negative according to the arrows. However, in the circuit you have labelled the arrows moving from negative to positive. Which one is correct?
Hi Angelino,
I supposed you are talking about the "small red battery" which i drew. That is used to help us decide the charges of the two electrodes.
Everything presented in the video is correct. Note that one of the application of Simple Cells is in Batteries and you learn in basic Physics/Science classes (Sec 1/2 if you are based in Singapore) that electrons always travel out of the negative terminal of the battery, and returns back at the positive terminal.
Hope this is clearer to you now.
You can visit my Basic Chemistry blog www.SimpleChemConcepts.com (written based on GCE O-Level Pure Chemistry and IP Chemistry syllabus content) for more tips and discussion of Chemistry concepts).
Meanwhile, stay safe and continue to learn with understanding. All the best for your upcoming O-Level examination.
To Your Academic Success in Chemistry,
Sean Chua
Thanks alot ! you explained the topic quite well .
Glad it was helpful!
Learned alot.
thanks kind sir. i really appreciated this video!
Glad it was helpful!
thank you!!!!!loved it
how are both of the half equations gaining an electron when its meant to be one side is gaining and the other is loosing?
hello, thank you for your video! may I ask if the anode in simple cells will always discharge/oxidise, since the metal at the anode is always more reactive than the cathode? thanks!
Best teacher
Thanks that was useful so much
hello teacher idk if you still read comments but if acids are to be used as an electrolyte, would the zinc react with the acid??
Thanku sooo muchh
Great explanation,I understood perfectly
Glad it helped!
Sir, i think for the circuit to complete the electron released from zinc should come back to zinc.But you did,t say anything about it.
Thank u sir for ur great explanation
You are most welcome
Hey guys, I need an answer urgently! What is the purpose of the electrolyte? Without it, don't electrons still flow?
Isn't the negative electrode, meant to be the cathode, and the positive electrode the anode?
Hi Sughra Zulfiqar, this is a very good question. Many students are confused between Simple Cells (also known as Galvanic Cells, Electric Cells and Voltaic Cells) and Electrolytic Cells. The charges on the cathode and anode for the two different cells are different/opposite.
For Simple Cells: Cathode (+) and Anode (-)
For Electrolytic Cells: Cathode (-) and Anode (+)
Students are confused because they tend to just memorise and regurgitate, instead of understanding the underlying concepts on how they work.
For Simple Cells, it involve spontaneous reaction whereby Chemical Energy is being converted into Electrical Energy.
For Electrolytic Cells, it involve non-spontaneous reaction whereby Electrical Energy is being converted into Chemical Energy.
You can refer to the blog posts and videos on my Basic Chemistry website www.simplechemconcepts.com/?s=electrolysis to understand more about how each type of cells work as well as their similarities/differences. There's quite a number of strategies and analogies/mnemonics which i shared in my blog.
To Your Chemistry Success,
Sean Chua
@@SimpleChemConcepts ok, thanks for your help, even though my exams have been cancelled.
@@SimpleChemConcepts Also, does the more reactive metal always form the negative electrode?
thank you
Thanks 🥰🥰
Love the explanation 😍
Glad you liked it!
Do you mean cathode is a positive side?
Very good class
Thanks and welcome
Ty so much you helped me a lot 😭💗
I'm so glad!
Thanks sir
ok thank
Why don’t the electrons from zinc directly reduce the H+ ions?
It did.
Zinc loses electrons [oxidation occurs].
H+ ions gain electrons [reduction occurs].
Redox Reaction occurs whereby both oxidation and reduction occurs simultaneously in a Simple Cell. It is a spontaneous reaction.
perfect 👌👌👌
Thanks a lot 😊
Good sir
Thanks❤🎉🎉😊
You're welcome 😊
Love you
thank you so much !!! really helped a lot !!!
Glad it helped!
I am a little confused, dont electrons move from positive to negative electrodes normally?
In all the books I have studied for IGCSE all of them say positive to negative
No...electrons already have negative charge..why would they move toward negative terminal..they move towards positive terminal
Thx so much
👍
100% useful 👌
I thought it should be copper discharge because copper is more reactive than hydrogen?
Copper is less reactive than hydrogen on the reactivity series
Electrolyte no copper ions to be discharged. Only positive sodium and hydrogen, and since hydrogen is lower in the series, it is selectively discharged.
If electrolyte is aq copper chloride, then copper will be discharged.
Isnt Cathode negative ?
No the Cathode is positive and the annode is negative, don't forget OIL RIG
😍❤❤👍
blessu
3 more days
Thank you so much
thank you very much
You are welcome