I understand how it works but THE BIG BIG PROBLEM is that I really don't know why they invented this term in the first place?? what is the purpose of it?? we have Moles and other units so what info does this Unit provide that is too important to deal with it in daily bases? need to clarify

@shivangswain

6 жыл бұрын

Well, the branch of electrochemistry is totally based on equivalence. From electroplating and surface adsorption to batteries and mineral refinement, everything requires both moles (ie mass) & charge of its constituents to be considered. This is why the concept of Equivalent was introduced. Nothing about this unit (or as a matter of fact any unit) is useless.

@slwankaedbey775

6 жыл бұрын

Thanks for clarifying Shivang, I see your point.

@MrKaplanFilm

3 жыл бұрын

So basically, it is a value to tell us how to "reach" neutral charges in solutions? I agree with Slwan, because as a medical student I don't see the relevance of it.

@gabrielchris5163

2 жыл бұрын

simply they invented equivalence or more precisely they discovered it by experience before the establishment of stoechiometry and before the acceptance of atomic theory the first equivalence tables date back to 1777 so normality and equivalence are the original expression of concentration and not molarity and had a huge impact on the developpment of chemistry as quantitative science , but it became now obsolete

@somerandomuserfromootooob

Ай бұрын

They got bored using moles and wanted to invite a fancy term.

great explanation! you are right ... the Wikipedia explanation was useless

@MrKaplanFilm

3 жыл бұрын

Totally agreed.

@user-po3ii1tl9z

3 жыл бұрын

@Aditya N Bharadwaj LOL

@rr.studios

3 жыл бұрын

@Wilder Hugo I swear I keep seeing these bots EVERYWHERE

I always tries to understand concepts from different sources, but I always end up understanding it at Khan Academy. Keep helping us!

@bhavishyasharma7834

2 жыл бұрын

And keep supporting them with donations

You deserve more than 5 million subscribers, you explain better than Wikipedia and the teacher, thank you :)

This is so easy to understand!!! Thank you so much!

Great video! Thanks. I did chemistry at school. That's six years of basics chemistry! And we had pretty good teachers, one discovers such things later. Not all schools are equal. Fourty years later I still remember what mol is. So mEq is easy. However, not everybody has basic knowledge of chemistry. So, thanks for this video, curious people need such video's. Your explanations are very okay. Besides, one of our chemistry teachers often said mo-mo-mo-mo-molecules-yes. All these Latin words are co-co-complicated.

This is the best explanation I've ever come across.....thanks a lot

@user-xl1rh5hf8g

2 жыл бұрын

Прекрасное объяснение! Спасибо!

@9-volt247

5 ай бұрын

@@user-xl1rh5hf8g English Translation: Great explanation! Thank you!

No one explains like you do!! Thank you so much

Thank you for your perfect explanation! It's very useful!

Thank you very much,it was so easy to understand without any confusion, thanks a lot again.

Thank you so much for the help, you're super easy to follow and understand. My book goes into little detail and I was pretty confused, but it's actually pretty elementary. Thanks!!!!!!

@chandanikumari-kv8gg

Жыл бұрын

What are you doing right now as its 8 year of your comment

@musicaldramaqueen

Жыл бұрын

Me too! Same with my book.

Greatly helped me ! Thanks so much !

Thank you thank you I was struggling to understand what equivalent means but now I have a better idea

Thank you Sir! It has been explained very clearly !

THIS WAS SO CLEAR!!! Thank you!!!!!!!!!!!! :)

Thanks. Very clear explanation

best of all thank you cleared my concept #equivalent is just number @ requirement 1 mole oppositely charged monovalent ion or just hit the valency....

Thanks a lot. I feel lot more comfortable now.

Thanks for clearing very basic concept

I was studying Normality and was so damn confused on Equivalents and let me tell how easily I understood this! Like hello?? I struggled on this concept for an hour and this is all there is to it? Like thank you and thank youuu!!

Best explanation... Beautifully made me understand

Thanks this really helped 👍

Finally i got someone who explained the logics behind introducing this term.. Thank you🎉

You might create a video to explain how this would apply to dosage information that is given in milli equivalents.

Thanks a lot!!

Thank you so much for this vedio sir, Thanks for making me understand ❤

Thanks man! 🧡

Amazing explanation!!!!!

Thanks for the video it helped!

super useful!

Nice explanation. Thank u

Nice yrr, clearly understood

thats the best !!!! thanku sooooooo much !!!! oh really ! this means. A LOT. to me !!!

great explanation

Superb explaination

Thanks a lot ❤

Thank you Khan Academy iss the BEST !!!!!!!!!!!!

Many many thanks *** for helping me to understand the basic concept of ~ *** the best video for the EL like me *** from the South Korea

perfect thanks

thank you!

Thankew U r better than wiki

Clear n easy 😄 thnk u

As I understand: 1 Equivalent is 1 mole divided by the valence (or charge) 1 Eq = 1mol/valence. Please correct if any discrepency.

Don't know why its important to learn this but at least I understand it

best explanation

Thank You. This clarified why the equation is Equivalents = moles * valence. Hopefully I will one day understand why we use Equivalents.

@yashbendale212

4 жыл бұрын

Haaat

Perfect 🔥

Thank you...but quick Q, what about when both opposite sides come with more than 1 charge???

Thank you

thank you

Was this so simple?🥺

Mole is the general concept as it describes the amount of any element or molecule whereas the equivalent applies to chemical reactions including redox reactions. more precisely the equivalent concepts tell us the part of a mole of one reactant that is actually needed to react with the one mole of another reactant.

Ammonia is produced by the reaction: H_2(g) + N_2(g) -> NH_3. Is 12.5g of H_2 the equivalent of 25.3G of N_2? If yes or no, how do I figure it out?

THANKSSSSSS!!!!!!

why dont you show of NH3CO2H ? idont know how to calculate the equivalent of this

What if you are given the concentration of say CaCl2 and u are to find the concentration of Calcium, CaCl2 has no charge but Ca has a charge of plus 2

Arigato❤

moles of thanks to you ❤

Khan academy never disappoints!

we calculated number of moles of K+ ion (for example) to neutralize an oppositely charged monovalent. But how do we calculate if we were to K atoms (neutral) in place of K+ ions? Then we will need infinite moles, right?

@kashyapmangathaya4173

6 жыл бұрын

Yash Mehan You cannot calculate the equivalent mass for an atom as such, only when it is ionised can you apply this formula.

@BabaaYaga888

5 жыл бұрын

Equivalency is a variable term, it changes with respect to the other element it's combining with. Here, we see only a given element combining with a monovalent mole, but there can be cases where it combined with divalent mole or even trivalent ones. Equivalency is a relative term, it is always wrt to the element it is re acting with. And reaction will only occur when we consider real charges (in ionic compounds) or at least imaginary charges (in covalent compounds). This being said, we can never consider K (neutral) atom combining and balancing electrons

Thank you. Great explanation

I wanna know about gypsum equivalent

Em...so basically the ionization = the Eq?

thanks dawg,

So equivalent is different from equivalent weight?

what is the equivalent weight of triethylamine

what if on the other side we don't have a monovalant, the equivalent of a substance will be a variable r8? the equivalent of calcuim will not always be 2. it wud only be 2 if v hav a monovalent on the other side...

@shivangswain

6 жыл бұрын

Well, Equivalent or Equivalent Weight is the number of moles of a substance required to discharge one mole of a monovalent. That is the definition.

Simply put ... an equivalent = a mole of charge .

I have a doubt ... If we take eg of Al2O3 , we can find its equivalent weight but oxygen is not in monovalent??

@shatakshishelar5471

3 жыл бұрын

Take AlCl3

Please help me with this sir. Why is 1mol of h+ = 1eq?? Why not 1mol of n3- = 1eq and 1 mol of h+= 1eq??

@sriramiyer9840

6 жыл бұрын

And I do not intend to talk about only this specific example. I don't get it in all the examples. Please help.

Glad I wasn't the only one getting way more confused when watching this lol.

what if it's 3/2??

whyyy no of moleces of calcium to balane one mole of cl-===== then itis euivalent is half not 2?? can understand

And I think I'd get about the same response if I suggested they were equivalent. Was I pulling your chain reader? You decide. Either way it seems like a matter of fancy and aethetic the way this is set up. How much more, $10 $100 dollars more? Do I have to be involved? important follow ups.

Does no one see he writes his e's weirdly?! only thing i could concentrate on this whole video...

Hi slwan I love you

What is equivalent weight ?

@shivangswain

6 жыл бұрын

Equivalent Weight or Equivalent (≠ Equivalence) is equal to molar mass upon charge (number of H+/OH-/charge on cation)

الهردوزية!

0:02 Why Wikipedia?

hidemya

is it constant for an element

So it's literally just a mol to mol ratio? Why did they give it a stupid and confusing name?

welp.....wikipedia is pretty useless

Hay this is India. Please speak in hindi

Are you a lefty?

I was much less confused before I watched this video.

Is an equivalent the same as normality?

@mlpiper11

9 жыл бұрын

Meaning how can I do Equivalents per liter

@FROPDESAI

8 жыл бұрын

+Morgan Piper For normality, you just take the Weight/Volume ratio (Weight of solute divided by the Volume of the solution in liter) and then divided the Weight/Volume ratio by the equivalent weight of the Compound of whose solution you prepared.

it's calcium (Ca2+) stop calling it potassium

@pratyushbavanari391

7 жыл бұрын

Its potassium....!! :)

@kouvasilias123

7 жыл бұрын

potassium -> K+ calcium -> Ca2+ he was calling Ca2+ as potassium. just focus on what he was saying

@scienceman3326

7 жыл бұрын

lel he switched from kcl to cacl

wow i didnt get nothing!!!

@DNAatWork14

6 жыл бұрын

homework done in at 11 tonight... SO HARD...

@cmhardin37

5 жыл бұрын

You got something?

thank god ...I didn't study here

Very basic explanation

very bad explanation. not clear at all.

@prateekgurjar1651

7 жыл бұрын

wow