Thank you Professor Dave! Our professor "forgets" to explain a lot of the basic concepts for a chapter, leaving us confused when she goes on to more complex parts of the chapter. Your videos are brief enough for me to watch them before lecture so I can understand and visualize basic concepts.

@yusufbrecken3007

2 жыл бұрын

I guess it's quite randomly asking but does anybody know a good site to stream newly released movies online?

@happylad7549

2 жыл бұрын

@@yusufbrecken3007 😂😂😂

@jonysingh9877

2 жыл бұрын

7yyyyp hevrrfrlkpcasse222lq2q1c1t1uw

idk how you do it , but you make even the most complicated looking things so simple ... cant thank you enough

What i struggled to learn so much time u taught it in less than 5 mins. Truly AMAZING Thank you so much professor dave

Your are awesome, I am using this to reinforce MCAT material. Your videos are straight to the point, no fluff. I commend you good sir.

@ivoryas1696

Жыл бұрын

Anwar Dhama Nice; hope you did well!

When this video was posted I was in the 9th grade,and now I’m in first year med school…and it’s helped me SO much!! Just want to thank you! Med school so far hasn’t been easy lol,but these videos are making it a whole lot better!!

so helpful man, this chapter is filled with direct words, had missed a few definations leading to confusion, really you made it so much clearer and easier : ) thank you !

Thanks professor you will never now how much you helped me through your short videos

These videos are great when i need to refresh my memory about a-level chemistry during uni

Amen to you Chemistry Jesus

I cannot thank you enough Prof. Dave! like you are a lifesaver!!!

Left oxidise anode negatively=LOAN.. simply easy to distinguish the anode.

@KSUBSCRIBERINYEARCHALLENGE

3 жыл бұрын

wow tnx i never expected such creative and brilliant comment

Thankyou for your great explanation in short time

Tq very much dave sir my aim is to become scientist ur videos r soo clear for me

Electrons flow from low electric potential to high; the opposite of what you said @ 2:50. conventional current will flow from high to low voltage

@TravelingTreats

3 жыл бұрын

Professor Dave is this accurate? I need help with electrochemistry and to study for my chem 2 final?

When you support someone From start and then you on this stage really feeling proud of you bro❤️💓

Thank you professor ... your videos are very helpful

thank youuu!

Professor Dave, I thank God for your existence.. I gain lots of knowledge from your videos~~

A real chemist... Sir you are great your lecture have no confusion.

Best revision material ever

greetings professor! i kinda wonder why the electrons lost by zinc dont go to the bridge first? how could they make a choice? thx alot

Excellent teacher!

i don't understand this at all

@Js4ng

Ай бұрын

Skibidi toilet rizz

@TJ-ih5wq

Ай бұрын

@@Js4ngon god

@OmniversalInsect

Ай бұрын

You need to learn more basic concepts.

@amiralziadna4143

Ай бұрын

So I need to leave some more basic concepts

@user-bp8dt2bw6n

Ай бұрын

Hahahahahahahahaahahahahahahahahahahaahahahahaahahahahahahahaahhaajajahahhahahahaahahanahahaahanajajajajajaajajaj😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😂😅😂😅😂😅😂😅😂😅😂😅😂😅😅😂😅😂😅😂😂😅😂😂😂😂😂😂

Thank you professor Dave

For the Ecell, why didn't you change the sign of the anode to positive 1.66. The chart shows negative 1.66 for Al3+ to Al(s) which is the reverse of the anode in the problem at the end. So wouldn't you flip the sign since the reaction is flipped?

@annamauroam

5 жыл бұрын

Do you know basic math?

Would like to see you cover cyclic voltammetry and chronoamperometry

Don't negative charges flow from a low to a high potentials and positive charges the other way around?

@ProfessorDaveExplains

7 жыл бұрын

yes!

@zzHackedTutorialzz

7 жыл бұрын

How come at 2:50 you say that electrons flow from a high to low potential?

@ProfessorDaveExplains

7 жыл бұрын

yikes, perhaps i meant energy instead of potential, i'll look into it

is it constant for cathode to be on product side and anode on the reactant side?

omg I finally understand😄Thanks!

how does professor dave teach me a topic in 5 minutes better than my teacher does in 5 days of 45 minute lessons

Sir can you please make a video on polarography technique-introduction, polarographic cell, polarogram, working of polarographic cell, Dropping mercury electrode, supporting electrolyte, role of supporting electrolyte and on cyclic voltametry technique

Thank you professor ❤❤

i literally gave up studying for the day and decided to watch your videos to maybe get a bit of education, but then while watching i felt like instead of tiring out from studying i instead have to start writing stuff down as it all made sense without effort.

Thank you J

Please help with electrochemical series !

So if you flip the sign of the reduction potential you get the oxidizing potential for a reaction?

@samrashafaq1717

4 жыл бұрын

Yup

Sir help me in finding Ur more videos about electrochemistry

Dave, isn't that the electrons flow from areas of low electric potential to high electric potential?(you've mistakenly said the reverse)

Thank you so much!!!

Thank you!

great help

This man actually makes me wanna learn chemistry and not just mug it up :p

1:30 are the plus and minus signs above the electrodes the wrong way around? Cathode is negative and anode is positive

@ProfessorDaveExplains

Жыл бұрын

No, other way. The video is right.

sir in electrolytic cells we consider anode as positive and here we dont. is there any reason for that?

@ProfessorDaveExplains

6 жыл бұрын

in electrolytic cells a current is used to drive an otherwise nonspontaneous reaction, whereas in a voltaic cell a spontaneous redox reaction is used to generate a current, so it's the reverse situation in terms of electron flow

@pravinjr10

6 жыл бұрын

well explained tq

Could you explain how you got that Ecell? Isn't Fe +0.77?

@ProfessorDaveExplains

7 жыл бұрын

nope, it's -0.44! look it up.

@AkhilNairjedi18

7 жыл бұрын

Oh sorry, I was looking at Fe3+ instead of Fe2+ in your list.

This does not explain an ice tray battery right?

honey singh and professor dave 2 youtube channels I visit even if they are 7 year old

Can you explain about Standard Oxidation Potential and Standard Reduction Potential??

@ProfessorDaveExplains

6 жыл бұрын

that's in this clip you're commenting on.

@aman_raj2926

6 жыл бұрын

Professor Dave Explains thanks

great sir

Thanks Sir

thanku sir........superrrrb explaination😍😍😍😍😍

its nice to watch

U look twin of ranbir kapoor the Bollywood actor

@abhisheksahuuu

4 жыл бұрын

No he looks like professor Jesus Jr. ;)

Thanks :)

The Nerd's Equation 🤣🤣

Thanku

incredible

why zinc atom ionize in its solution

@ProfessorDaveExplains

6 жыл бұрын

it doesn't, the atoms in the electrode ionize, and then the ions enter solution.

Which book is best for chemistry and math for class 12

@atharvbhagwat9137

6 жыл бұрын

all in one for maths and NCERT textbook for Chemistry

@aliatruman

6 жыл бұрын

yes

thanks man 100% incoming

great

Good

For the Ecell, why didn't you change the sign of the anode to positive 1.66. The chart shows negative 1.66 for Al3+ to Al(s) which is the reverse of the anode in the problem at the end. So wouldn't you flip the sign since the reaction is flipped? pls answer ty

@ProfessorDaveExplains

5 жыл бұрын

we don't manipulate the reduction potentials when calculating Ecell, we just plug them in directly

@carinaeizmendi1111

4 жыл бұрын

I agree with jjdh911 dexter that it's easier to just think "I SUM the energies of the proper half reactions" and then flip the reduction half reaction as needed then try to remember which one to subtract. It's not manipulation; I was taught to do it that way. I try to avoid memorizing whenever possible!

If you fail your test after watching this , you should know that the problem is with you , not with the subject , myself included hahaha , it can't get any simpler .

Ugh why did I thought that kathod is - and anode is +?

@raycalle3241

3 жыл бұрын

It is, just not for voltaic cells. That is because the flow of current is reversed

Why the charge on anode is negative

@ProfessorDaveExplains

2 жыл бұрын

Because that's where oxidation takes place.

good cap Dave

More discription

The final answer is -1.22

I love you dave. No homo!

I scanned the QR code in my book and reached here

i fucking love u dog, short and sweet

Straight stuff.

anode is + and cathode is - not the other way round

@ProfessorDaveExplains

2 жыл бұрын

This video is correct.

@MVC670

2 жыл бұрын

Professor Dave is correct - for galvanic cells. I'll bet, though, that you are dealing with electrolytic cells. An anode is where oxidation occurs. It's mind-frying because if you want to induce oxidation at the electrode -say oxidize the electrode itself from metal to ions in solution, the basis for electropolishing - you hook up the *positive* terminal of the power supply to the electrode. Positive sucks out electrons from anything at the electrode surface Conversely, to drive reduction (reduction = cathode) such as electroplating, you hook up the negative terminal to the electrode you want to plate. Negative feeds electrons to anything at the electrode surface, such as metal ions you want to reduce and plate on the surface. I once knew a guy doing stress corrosion cracking studies on stainless steels. He told me that he set up electrochemical test cells by going through the thermodynamics and the equations, then hooking it up exactly the opposite. It never failed him.

How is it so that near the anode oxidation takes place? Anode is positive (I don't know why but it is positive right?). So it must attract anions. And what do anions do? They accept protons. Which is equal to reduction. I can't get it please. Teachers in Bulgaria are horrible at explaining even these simple stuff and all they do is confuse students. Help

@ProfessorDaveExplains

2 жыл бұрын

No no, at the anode neutral atoms are oxidized. The electrons move through the wire to the cathode.

U r grt 😎

Super 👌👌👌👌👍teaching

DaaaavvvVVVVeeEEEEE !!!!!!!!!!!!!!! BRO!!!!!!!!

anode is + and cathode is -...

@ProfessorDaveExplains

7 жыл бұрын

not for a galvanic cell! perhaps you're thinking of an electrolytic cell.

@krapsenhelb180

4 жыл бұрын

That's on electrolytic, on volatic cell we got the opposite

thank you science jesus

Chat r we cooked

👍🏻👍🏻👍🏻👍🏻👍🏻

i’m cooked

M

yeah buddy

am i the only one who is not fully understanding the exact details of the whole subject

Lee

i love ur videos baby

Thank you chemistry Jesus

I am a salt bridge without an voltaic cell.

जब भी Motivation कम होने लगें तब अपने माता पिता कि तरफ देखकर पढनें लगना क्यों कि उनकी खुशी हम सब हैं और हमारी खुशी हमारे माता पिता हैं ✍️✍️✍️......

Thanks i don't understand any thing 😢😂💔