yego.me
yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Happy Mole Day!

less than 1m read
·Nov 11, 2024

Hey everybody! Rocco T. Mole here to wish you a Happy Mole Day from all of us at Khan Academy!

Yes, moles! The chemistry concept, not the critter. Now, in case you’ve been living under a rock (like me), a mole is another name for Avogadro’s number which is (approximately) 6.022 times 10 to the 23rd. Kinda like how a “dozen” is another name for 12.

So why do we need a name for such a big number?! Well, we could write it like this: 602,214,129,000,000,000,000,000 (Thank you). But that would take a while! Moles make counting easier for chemists, particularly when talking about atoms or molecules.

So for the number of molecules in a cup of water, you could write an 8 with 24 zeros after it... OR you could just call it 13 moles of water instead! (Thank you Yuki) Isn't that easier?

Now, the moral of this story is: moles are the best! And if you want to learn more about chemistry, or anything, really, head to our website: khanacademy.org.

That's Khan as in Ghenghis, no relation; and Academy, as in academy. Happy Mole Day everyone! You can learn anything!

Are we still–we're not recording, right?

PSYCHOTHERAPY - Jacques Lacan
Skip counting equal groups

More Articles

View All
Isotopes | Atoms, isotopes, and ions | High school chemistry | Khan Academy
Every element is defined by the number of protons in its atoms, which is called its atomic number. So, for example, every atom of potassium has 19 protons, and every atom of cobalt has 27 protons. But what about neutrons? Well, an element doesn’t always …
The Next Atomic Bomb Is Made of DNA #kurzgesagt #shorts
The next atomic bomb is made of DNA, and it’s as affordable as a new car. In recent years, genetic data has become more available, knowledge more widespread, and lab resources less expensive. Bioengineering had previously been restricted to well-funded la…
Things to Remember When Time Traveling
The year is 2019, or maybe 1600, or maybe there isn’t even a calendar system in place yet. There is no BC or AD because, you know, it hasn’t happened yet. But somehow, you’ve managed to travel back in time. Okay, first things first, don’t panic. However …
15 Things That Separate LEADERS From FOLLOWERS
Many people think that leadership has to do with rank or position. But, on the contrary, leadership is about social influence, not positional power. Anyone can climb up the ladder, but not everyone is cut out for leadership. Now, that doesn’t mean they’re…
THE AMERICAN DREAM 🇺🇸 IS NO LONGER ATTAINABLE?
So many young Americans feel that the American dream is unattainable. You’ve got to remember these young people, this cohort of individuals, men and women, never lived in a time of rising interest rates or inflation. Obviously, these are great cycles, but…
The Moon
When you look at the Moon in the night sky, it might seem reasonably close, but it’s actually incredibly far away. Right over here is a scaled picture of the distance between the Earth and the Moon. Earth has a diameter of approximately 8,000 miles, while…