Was looking to my homework for half an hour, decided to look for an example online and wasn't dissapointed. Thank you very much for this clear explanation. :)
thank you so much for this. My professor hasn't explained this at all and we have a test on electrochem today. Just wanted to say thanks for clarifying this for me :=] love your stuff.
From the way you present nernst equation, you give the impression that you simply use the first equation if another temperature is used. E0 also depends on temperature, so you can't use the same values. you cant just plug the temperature into nernst equation, and use E0 defined for 25 degrees. ΔG° = ΔH° - T ΔS° = - nFE, must be used to find E0 at the desired temperature first.
When studying corrosion, I have found from many authors (and I teacher I had) that the sign in the equation is (+) not (-) and Q equals to the cations concentration. Could you explain this for me please? Is driving me crazy not knowing which sign should I use in the equation. It depends on what?
i dont know if my understanding is wrong but I thought the Q should stand for the concentration of reduced divided by concentration of oxidised and in the cu-fe reaction,cu is the reduced one... so shouldnt it be 3/0.01
Question :What if you didn't got concentration of the ions and all you have is the voltage of the cell ? How would you calculate that using the nern's equation ?
what about if you are givin only one concentration and asked to find the other using the nerst equation, how to I do that? would you mind doing a video on that? chemistNATE ...
Quick question. Don't we multiply the electrons anode 1/2 reaction and the cathode 1/2 reaction by two? Thus leading our final equation to be 2Cu2+(aq) + 2Fe(s)+4e- ---> 2Cu(s) + 2Fe2+(aq) + 4e-
Per se, you have a galvanic cell in which the anode involves a 2 electron transfer and the cathode a 4 electron transfer. Notable, this reaction/cell is separated by a salt bridge. When finding the Cell Potential using the Nernst Equation, would you have to multiply the half reaction by 2 in order to cancel out the electrons, or are they deemed to be independent when separated by a salt bridge. Thanks in advance!
I was wondering the same, cause then that would make the logQ=0 and therefore the whole second part of the nernst equation will also equal zero and hence the Ecell will be equal to the Ecell potential at 1M. However I've heard that isn't possible is that the case? please help Ib student&chemIA..
Did I understand it correctly: if i have the same concentrations i use ln and if there are different i use: log? In my skript i found: E=E*+RT/nF*ln(a(ox))/(a(red)) why there is a plus using activitys?? Pls help
Thank you so much ! But , can u add some superscription ? i'm not so good only listening as i am with texts (im not a native english speaker) . Sorry about my bad english .
Thanks, I couldn't work out what n was supposed to be, my notes weren't clear (turns out it's just 1 in my case so it's not even relevant) but thank you!
very clear. I've been reading for 2 hours what you explained in a couple of minutes. Thank You!
let me tell this guy is not publishing these videos because he wants to show his knowledge.he actually wants to help others and that's fascinating
oh my goodness you dont understand how much this video helped me i just really wanted to thank you
I have three words for this tutorial: clear, simple, and straight forward. Thank you, sir! :)
thats 4
I've been trying to figure this out for two weeks now, and it took you no time to explain it clearly. I wish you were my professor!
Was looking to my homework for half an hour, decided to look for an example online and wasn't dissapointed. Thank you very much for this clear explanation. :)
Looks like i just found my favorite chemistry teacher
xxx
This guy perfectly know how to butter up a bread🤣
thank you so much for this. My professor hasn't explained this at all and we have a test on electrochem today. Just wanted to say thanks for clarifying this for me :=] love your stuff.
our teacher spent 55min to explain this. you're amazing.
What were u doin that tym?
@@flextin1984 i got really bored because he made it sound very complicated.
@@abdullahspeed8163 I don't know why teachers like to do that sometimes😂😂thank god for TH-cam😂
Thank you sir! I needed to know what "n" was. Appreciate the clear understanding.
SAEM
That is the number of electrons in the reaction.
you are amazing. i got my A grade in A levels cuz of your amazing ezplainations
KJ from India....
U did something really good..
❤❤ best teacher on youtube to explain particularly this topic (NERNST REACTION).
Straight to the point with some sarcasm. I like it! Keep doing more videos, your style so much better to learn.
The GOAT of chemistry. thx
Got an A in Gen chem 1 and 2 thanks to you bro. Much appreciated!
LOVE TO HEAR IT
You make seem so easy, Thank you for taking your time out of whatever you could of been doing to make this video.
Maaaaannn ChemistNate is Dope AF Bro!!!!!!! Make Chemistry and Math Easy and Fun!!!!!!
From the way you present nernst equation, you give the impression that you simply use the first equation if another temperature is used.
E0 also depends on temperature, so you can't use the same values. you cant just plug the temperature into nernst equation, and use E0 defined for 25 degrees.
ΔG° = ΔH° - T ΔS° = - nFE, must be used to find E0 at the desired temperature first.
tomorrow is exam......and this video is worth it
God bless you bc i understand from u better than my teacher
Hello! At around 4:02 what do I do if I have multiple aqueous products or reactants? Do I just get their sum and continue as normal?
Lol! I love your enthusiasm!!! Thank you so much for the short and helpful video! You earned my subscription!
When studying corrosion, I have found from many authors (and I teacher I had) that the sign in the equation is (+) not (-) and Q equals to the cations concentration. Could you explain this for me please? Is driving me crazy not knowing which sign should I use in the equation. It depends on what?
Awesomeness packed in 6:36 mins...
At my shool my teacher gave me another formula, but actually both work, greets from Mexico
Thank you so much :) this helped heaps with my chemistry assignment!
Explained very well. I appreciate your efforts. Thanks!
why do you add the standard potentials and not take the difference of cathode minus anode?
last 50 seconds were gold
This was a MASSIVE help
i dont know if my understanding is wrong but I thought the Q should stand for the concentration of reduced divided by concentration of oxidised and in the cu-fe reaction,cu is the reduced one...
so shouldnt it be 3/0.01
question? why did you subtract -.073248476 -.78
Instead of .78 -.073248476 ?????????
Thanks chemistNATE 👍
subscribed, Thanks for getting me through uni, you're incredible.
why does it makes sense that the voltage is higher because there are more reactants and less products? how does that give a greater voltage?
I just subscribed. I think your videos are the main reason my ass is going to be saved this Semester. So I thank you lol so much.
You just save me man forom my exam thanks
If i had a betterie with both component being the same metal, whould a take Q being result/reagent or diluted/concentrated?
Question :What if you didn't got concentration of the ions and all you have is the voltage of the cell ? How would you calculate that using the nern's equation ?
Assalam-o-Alaikum!
You made it easy to understand.
Thanks.
what about if you are givin only one concentration and asked to find the other using the nerst equation, how to I do that? would you mind doing a video on that? chemistNATE ...
How do you put that on the ti-nspire?
Thank you soooo much You're better than my teacher!!
how did you get the 0.78 V?
What would I do if both concentrations were 0.1 mol/L?
T.H.A.N.K.S
fantabulous explanations
Quick question. Don't we multiply the electrons anode 1/2 reaction and the cathode 1/2 reaction by two? Thus leading our final equation to be 2Cu2+(aq) + 2Fe(s)+4e- ---> 2Cu(s) + 2Fe2+(aq) + 4e-
Or can we simplify the equation by dividing by two?
Raul Doporto why wouldn't you
This videos awesome
After watching this video I went from dumb to you know what...Thank you mister!!
your explaination was super nice.thank you
can u pls do the calculations on the paper were not allowed to use calculators as I am not in college
you are my life savior
Per se, you have a galvanic cell in which the anode involves a 2 electron transfer and the cathode a 4 electron transfer. Notable, this reaction/cell is separated by a salt bridge. When finding the Cell Potential using the Nernst Equation, would you have to multiply the half reaction by 2 in order to cancel out the electrons, or are they deemed to be independent when separated by a salt bridge. Thanks in advance!
hi
How to factor in partial pressures in the equation of standard potential ?
I wish you were my chem teacher....
Thank u so much.. because of u I have understood many chapters.. Thanks a lot
I was wondering the same, cause then that would make the logQ=0 and therefore the whole second part of the nernst equation will also equal zero and hence the Ecell will be equal to the Ecell potential at 1M. However I've heard that isn't possible is that the case?
please help Ib student&chemIA..
We are not allowed to use calculators. Pl tell how to solve logarithmic term in nerst equation without calculator.
What if we're not given the individual voltages to find E cell and instead given molarities besides 1M and temp above 25 degree Celsius
Vanessa Lozano you should use :
E°=E_RT/nFln keq
Nice!
Studying in E4 level so want it more deeper!
Did I understand it correctly: if i have the same concentrations i use ln and if there are different i use: log?
In my skript i found: E=E*+RT/nF*ln(a(ox))/(a(red)) why there is a plus using activitys?? Pls help
No, solids are NOT included in the Q equation. He even said that.
Thank you so much sir. This was really helpful
sir we dont use calculators here in india....it would be great if you could tell us how to solve the log part. Thank you
sir, can you please let me know the answer for : NEAREST EQUATION AND CALCULATE EMF of the FOLLOWING CELL AT 298K
Clear and simple. THANK YOU!!!!
Great teaching sir. 👏
What if my product is all solid? For example Cu2+(aq) + 2Cl-(aq) + 2Ag(s) ---> Cu(s) + 2AgCl(s) chemistNATE
1/reactants
Can anyone explain why do we use the gas constant in the formula where we dont have to deal with any gas?
Lmao I was wondering the same thing. That gas constant finds its way into every single equation, I swear...
Thanks for this very good explaining
I'm german but in your video i understand all better than in germany 😅
so if Q=0, you get infinite voltage? there must be some rule this breaks because that would mean infinite energy.
Gilmourist Q can't be 0 because the concentration of products can't be zero ?
In our schools we are not allowed to use the callucater. ..
So how I can find it in easy way without wasting time on it
Awesome explanation
7 years later I'm sitting here trying to study for a Chem 2 final so I can just get a pass while I'm at home bc of Coronavirus
i love it...God bless since because your videos are too helping ones
Thank you so much ! But , can u add some superscription ? i'm not so good only listening as i am with texts (im not a native english speaker) . Sorry about my bad english .
Thank you very much for this video!!!
u have used calculator to find answer...but in exam we r not supplied....so...could u plz solve the log for us...
Isn't Q=([Fe2+].[Cu])/([Fe].[Cu2+])?
Thanks, I couldn't work out what n was supposed to be, my notes weren't clear (turns out it's just 1 in my case so it's not even relevant) but thank you!
but what if both ions are 0.1?
ABSOLUTELY AMAZING THANK U SO MUCH
Thanks to you sir I get it now!
perfect by all means
This helped so much!! Thank you!!
hi
plz sir show the calculations we are not allowed to use calculators
Damn u ara a hellof a teacher! good job^^
thanks that was really helpful.... Keep explaining
Thanks! this was very helpful.
in my chemistry book it was e0+log instead of eo-log
Sujith Reddy Garlapati then your book is wrong
Clear very clear...
Thanks from chile, i understood all
Thank you sir! helped me a lot!
good one sir you really clear my doubts big ThNks to you sit
Siwani Dellang heyy ur right
Nate is a real nigga.
Osum teaching👍🏻👍🏻👍🏻
im a Medical Doctor i dont think i need to know this level of complexity
bro both Nernst eq. r same
diff. is one is calculated and other is in constant(variable) terms both r in same dimension
swapnil shakya lmao I think he knows that. he does have a master's in chemistry
Great explanation.thanks a lot.