in 55:23, how do we understand about 'Al3+ + 3e=Al'. my personal understanding is like, since Al is 2.8.3, so Al receive 3 more electron, so become 2.8.6, seem weird. not so familiar in reading half equation
The Al3+ arrangement is 2.8 because it has lose 3 electrons. So when Al3+ ion receive 3 e, it will become 2.8.3,Al atom, everything back to square one. May i know why you don't engage yourself to any chemistry tuition near your area ? Not to offend you, but i think you need more help on that. If you only rely on these limited resources in my channel, it is not enough for you to cope with the syllabus.
Electrostatic force is the general term for the force between opposite charge. Metallic bond is the electrostatic force between metal ion and sea of delocalised electrons. Ionic bond is electronic force between cations and anions. Probably you should attend a tuition class near your place, that might help you to understand better 😀
Voltaic cell is made of two different metals as electrodes which electrolytic cell normally use same material for both electrodes. Electrolytic cell has a battery(or power source) while electrolytic cell don't have
Hi Sir, for example in Zn | Zn2+ || Cu2+ | Cu , aka the ZnSO4 and CuSO4 voltaic cell, at the end of the process, CuSO4 solution fade is because of Cu2+ ion become Cu atom and Cu atom deposit at the Cu electrode right. But why in electrolysis, CuSO4 solution wont fade/become paler?
In electrolysis the CuSO4 blue colour remain unchanged when we are using copper as anode. Copper is an active electrode, so at anode it will lose e to form Cu2+ ion, meanwhile at cathode Cu2+ ion from CuSO4 solution will be discharged.As production of Cu2+ ion and removal of Cu2+ ion happens concurrently, the concentration of Cu2+ ion in the solution does not change. And hence the blue colour remains unchanged as well
@@MrAprolsmaticohh so if the question mentioned solution/aqueous, then we have to put H+ and OH- ??? and can we still use the same strategy if the question mentioned aqueous?
@@doongiedoongdoong yup,for aqueous solution, there will be two additional ions in the electrolyte,which is H+ and OH-.In this case,we must know which ion will be selected to discharge at anode and cathode
btw im wondering about, since we know that carbon is placed on group 14, so it has 4 valence electron, so carbon will either DONATE 4 valence electron to be stable, or RECEIVE 4 valence electron?
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Hi sir ,Really you are excellent.Are you conducting any online classes for SPM?
Yes,i do. Reach me at spmchemistry.com if you wish to know more details
in 55:23, how do we understand about 'Al3+ + 3e=Al'. my personal understanding is like, since Al is 2.8.3, so Al receive 3 more electron, so become 2.8.6, seem weird. not so familiar in reading half equation
The Al3+ arrangement is 2.8 because it has lose 3 electrons. So when Al3+ ion receive 3 e, it will become 2.8.3,Al atom, everything back to square one.
May i know why you don't engage yourself to any chemistry tuition near your area ? Not to offend you, but i think you need more help on that.
If you only rely on these limited resources in my channel, it is not enough for you to cope with the syllabus.
@@MrAprolsmatic sry i just watch ur vid :( , but i enjoy learning chemistry so i wish n hope u can upload more vid for help
hi sir, do we need to mention if the ions/metals undergo oxidation/reduction and is a reducing/oxidising agent ?
If the question ask for that, then yes
hi sir, is there any video on voltaic cell?
U may purchase from this website
vgrowartlearningcenter.thinkific.com/pages/homepage
in 17:39, what is the difference between metallic bond, ionic bond and electrostatic force? :( sry i asked too much question
Electrostatic force is the general term for the force between opposite charge. Metallic bond is the electrostatic force between metal ion and sea of delocalised electrons. Ionic bond is electronic force between cations and anions. Probably you should attend a tuition class near your place, that might help you to understand better 😀
Hi sir, how to differentiate voltaic cell and electrolysis cell
Voltaic cell is made of two different metals as electrodes which electrolytic cell normally use same material for both electrodes. Electrolytic cell has a battery(or power source) while electrolytic cell don't have
Hi Sir, for example in Zn | Zn2+ || Cu2+ | Cu , aka the ZnSO4 and CuSO4 voltaic cell, at the end of the process, CuSO4 solution fade is because of Cu2+ ion become Cu atom and Cu atom deposit at the Cu electrode right. But why in electrolysis, CuSO4 solution wont fade/become paler?
In electrolysis the CuSO4 blue colour remain unchanged when we are using copper as anode. Copper is an active electrode, so at anode it will lose e to form Cu2+ ion, meanwhile at cathode Cu2+ ion from CuSO4 solution will be discharged.As production of Cu2+ ion and removal of Cu2+ ion happens concurrently, the concentration of Cu2+ ion in the solution does not change. And hence the blue colour remains unchanged as well
sir, why didnt u use h2o for the ions? H+ and OH-
It is molten compound. Molten = melted, no water is present, so no H+ ion and OH- ion
@@MrAprolsmatic thankyou sm .
@@MrAprolsmaticohh so if the question mentioned solution/aqueous, then we have to put H+ and OH- ??? and can we still use the same strategy if the question mentioned aqueous?
@@doongiedoongdoong yup,for aqueous solution, there will be two additional ions in the electrolyte,which is H+ and OH-.In this case,we must know which ion will be selected to discharge at anode and cathode
hi sir , sir buat tak video utk voltaic cell ?
Ada,video voltaic cell dalam e-learning program. Maklumat kat bahagian description ya. Atau anda boleh berhubung dgn saya kat spmchemistry.com
in 13:35, does ion same as electron?
Ion not the same as electron
may i know… apple to apple comparison sir?
apple to apple comparison means we are comparing the same species on both sides of equation
btw im wondering about, since we know that carbon is placed on group 14, so it has 4 valence electron, so carbon will either DONATE 4 valence electron to be stable, or RECEIVE 4 valence electron?
Nope.Share 4 electrons
The image is too offensive
why?
Hi,sir.I am form 5 ,student from Perlis .I would like to join your online class.May I ?
U may reach me at spmchemistry.com
Sir, do you teach stpm syllables?
I no longer teach STPM syllabus
sir video mana satu yang syaa bolee tgk tentang apple to apple comparison?? i dont understand 🥹 can you explain it
ruclips.net/video/hjftm3Ik33o/видео.html