An Actually Good Explanation of Moles

Regarding the sponsor Brilliant, it is just BS games. If you want to learn something buy a textbook.

i thank god everyday for this channel

"How much is a dozen?"
"Twelve"
"So you already understand the concept."

That was way less than thirteen minutes ;-)

Thanks for the video on moles, Mould! When they made you, they really broke the Mould!
Sorry, too much coffee.

My favorite piece of trivia about aluminum is that nobody really knows how it's supposed to be pronounced, because the guy who first isolated it spelled it 3 different ways: aluminum, aluminium, and alumimum. No one is sure why.

That animation of the strong em force melting onto the weighing scale was so cleannnnnn.

Chemistry — teacher REPEATED — almost every day. Never forgot.

A Mole is A NUMBER.

Nice video but I saw this to explain others

1 mile is defined as the number of atoms of 12 grams of carbon-12. So if a molecule has a relative atomic mass of x: the mass of 1 mole of that molecule is x grams, ie 1 relative atomic mass unit (RAM)* 1 mole = 1 gram. What I find wierd is why they chose to define it so that 1 RAM*1 mole =1 gram even though the SI unit for mass is a kilogram: it would just feel more consistent if they defined a mole so that 1 RAM* 1 mole = 1 kg not 1 g.

I know everyone else liked this video but I'm not sure it was that good at explaining things. You went on a whole tangent about why we use moles only to come back to the definition someone can search up on the Internet in 3 seconds and you don't simplify it at all.

A mole is in fact not 6.02214076x 10^23 particles, but a land animal that burrows underground.

My Love of cooking led me to try to reproduce the flavor in some of my favorite chips. I kept seeing this compound called sodium diacetate. I couldn't find any place that sold it so I was going to make it myself. When I looked up the chemical reactions involved, I figured I needed one molecule of sodium bicarbonate or lye, per 2 molecules of acetic acid. I instinctively was like, I've heard of moles before, is this what they're used for? Looked it up real quick and was like, yup. And thereafter I created better vinegar powder than whatever maltodextrin-vinegar concoction is usually sold online.

I still don't get it. :(

Toglimi le gruccie e la iella gay mi chiamo Biagio di balsamo e famiglia e fratelli.

Units of Moles and Gophers are equivalent

wait... I'm a tiny bit confused now, please help..
so are mols used to refer to the atomic mass of individual elements, or is it a constant

Do people seriously find the concept of moles that confusing? I've never had any problems with it, and didn't know anybody who did until I saw this comment section.

I mean come on, 10 year olds can count in 'stacks' in Minecraft or whatever. What's so difficult about dozens/bundles/stacks/moles?

That always confused me a lot. Because technically an electron, or quark or whatever is a particle.
So watching this video I understand that they actually mean by particle, protons or neutrons only because other particles are almost weightless.

Which is also confusing. The definition of weight is mass X gravity force, but here we limit ourselves to the mass part.
So how can people exactly measure a gram of something so small if we know that gravity varies? Also how would they be able to do that in space?

not sure why I am watching this video. I finished college level chemistry a while ago...

Chemist love overreacting 🙄

I thought is was "mols"

Money Goals: To be a Mollionaire, lol

Did anyone think the offside rule was about chemistry for a sec when he mentioned it?

I thought you were going to help me get rid of those critter crawling around under my lawn.

I dunno, Steve, do people really find it that complicated? For example, a water molecule weighs 18 atomic mass units, a mole of them weighs 18 grams. What's so hard about that?

Shout out to my Chemistry teacher Mr. Moles (no cap)

Now do milliequivalents!😂

I took a chem class last quarter and all i took away is avocados number

a mole is no different than a dozen... it's just more. There. Explained. Enjoy your science!

Moles is where I stopped caring about chemistry in high school honestly.

Good job, amigo. I have no complaints, which may be a record. Fine explanation.

offsides should only apply to inside the 18.

even if a mole IS 602,214,076,000,000,000,000,000 particles, i still don't want it digging holes all over my yard :P

why is moles difficult to explain? it's the number of molecules in the mass defined by 1 gram times the magnitude of the molecular weight. why's that hard? carbon is molecular weight 12, there's a mol of carbon atoms in 12g of carbon. i don't understand why that's hard to explain.

here's a gram of carbon.
carbon has a molecular weight of 12.
here's 12 grams of carbon.
that has 6.022e+23 molecules in it.

here's a gram of something else called x.
x has a molecular weight of BOOBOO.
here's BOOBOO grams of x
that has 6.022e+23 molecules of x in it.

duh.

There is no explanation for the offside rule.

Six hundred trilliards

In high school my chemistry teacher... wasn't great. And we hit moles pretty early on, and all of us were universally confused, because the way the book explained it, and the way the teacher explained it, seemed to be entirely different things.

Towards the end of the class, in the middle of a lecture, one of my friends slammed his book closed loudly and was like
Friend: I get it now!
Teacher gives a quizzical look
Friend: So if you have X number of things, then you have 1 mole of those things if X equals that one guy's number."
Teacher: yeah... where are you going with this?
Friend: Well, I just figured it out, that's all.
Teacher: We are near the end of the school year and you just figured out what was explained in the 2nd week? We have been using it all semester how are you just now understanding it?
Other friend: Well what he said makes sense, I haven't understood it either
Teacher: So wait... all of you have been confused on this?
General murmuring
Teacher: Well, that explains a lot. Anything else you are all confused on?
Friend: Nope, I think that was it.
Teacher: Thank god, for a second there I thought I was going to have to re-write the final.

This was also the class where 'the back row' (really the back 2 rows) decided one day that every 5 minutes they were going to give a standing ovation. The first few times it happened to land at an opportune moment and seemed excessive but somewhat called for. Then he started to get angry. By the end of the class, the guy was in stitches because they had kept it up so consistently through the whole 90 minute class. I didn't learn a lot of science in that class... but man... it was probably the most memorable class I ever had. Between the antics of the back row, and a teacher who seemed to barely grasp what he was trying to teach, it was like living out a sit-com! Not my favorite class... not by a mile... but absolutely some great memories.

Without watching this video, as I biologist I can tell you that a mole is the number of atoms that will, together, weigh exactly the atom's molecular weight in grams.

Dang, I was just hoping for a way to get them out of my lawn.

Ah...
Avagadro's number!

Great explanation, thank you!

An explanation of a number. Great. Do "dozen" next. That is equally mysterious.

In the 1970s I was taught that a mole is the atomic mass number in grams. It was in the textbooks too. And this is just being discovered now?

To this day I still can't wrap my head around how such a unit of measure was created nor how it is used by scientists. But the number 6.02 * 10 ^23 is stuck in my head with some relationship to moles. It's been MANY moons since freshman year's Intro to Chemistry class. If I had to guess I'd say that was the number of atoms in a mole?

Simple definition of mole
A mole is just a name representing a number - e.g. dozen is 12 - whether it's a dozen apples or a dozen bananas. If you count each nucleon (proton or neutron) in 1 (or N) gram(s) of anything, the answer will turn out to be 1 (or N) mole(s) (6.022 140 76 x 10^23). This is why 2 grams of Hydrogen (H2) has 1 mole of H2 molecules or equivalently 2 moles of H atoms. 1 mole of water (H20) molecules weigh 2+16=18 grams. It's a wonderful unit of counting atoms and molecules in any sample of any element or compounds based on simply the mass of the sample in grams. Pretty cool, right ?

I used to have a large, hairy mole in the middle of my back. I managed to coax it off with a sugar lump.