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Started By
Message
Why do chemists say a mole is like a dozen eggs?
Posted on 10/23/19 at 4:47 pm
Posted on 10/23/19 at 4:47 pm
That never made sense. I don’t get the connection between a word that replaces a number and unit conversions.
12
Posted on 10/23/19 at 4:48 pm to tuptiger
I managed to get through HS chemistry without ever really understanding what a mole is and never looked back.
Posted on 10/23/19 at 4:50 pm to Jim Rockford
quote:
managed to get through HS chemistry without ever really understanding what a mole is and never looked back.
Took it in college, and I have no idea myself.
Posted on 10/23/19 at 4:50 pm to Jim Rockford
Real perfectionist
Posted on 10/23/19 at 4:51 pm to tuptiger
6.02214076×10^²³
Posted on 10/23/19 at 4:52 pm to GumboPot
Avogadro....
or however the hell you spell his damn name
or however the hell you spell his damn name
Posted on 10/23/19 at 4:54 pm to tuptiger
One dozen is a collection of 12 smaller units, One mole is a collection of 6.02x10^23 smaller units. Just a way to recognize one being a collection of many. Like these united states.
Posted on 10/23/19 at 4:55 pm to tuptiger
Because it refers to a specific number of things (6.023 × 10 to the 23rd).
Both a dozen and a mole are a name for an amount of something.
Both a dozen and a mole are a name for an amount of something.
This post was edited on 10/23/19 at 4:58 pm
Posted on 10/23/19 at 4:56 pm to tuptiger
Work with Chem Engineers but we only talk football, and I don’t want to drag science into our conversations. My guess is moles are make believe stuff, like unicorns.
This post was edited on 10/23/19 at 5:17 pm
Posted on 10/23/19 at 4:56 pm to Minnesota Tiger
I guess Avagadro got LSU...Burrow with all those moles.
Posted on 10/23/19 at 4:56 pm to tuptiger
What unit conversion are you even referring to?
Posted on 10/23/19 at 4:57 pm to tuptiger
It's just an easier way to notate a given amount of something. Don't overthink it.
Posted on 10/23/19 at 4:58 pm to Power-Dome
That’s my question
One dozen X 12 eggs/ 1 dozen
I never got how that was entirely related to the mole. I see how it’s related to unit conversions, but not entirely to the mole.
Unit conversions seem separate than the idea of the mole. Maybe the point was and is avagadros number substitutes as unit conversions.
Like time:
1 hour X 60 minutes/ 1 hour
Hours cancel. You’re left with minutes. But the mole is more complex.
One dozen X 12 eggs/ 1 dozen
I never got how that was entirely related to the mole. I see how it’s related to unit conversions, but not entirely to the mole.
Unit conversions seem separate than the idea of the mole. Maybe the point was and is avagadros number substitutes as unit conversions.
Like time:
1 hour X 60 minutes/ 1 hour
Hours cancel. You’re left with minutes. But the mole is more complex.
This post was edited on 10/23/19 at 5:02 pm
Posted on 10/23/19 at 5:06 pm to tuptiger
Yeah that analogy makes no sense.
My wife took a college chem course for a pre-req, and I discovered a Mole is simply a count of molecules. More useful than weight for measuring chemicals for a reaction.
My wife took a college chem course for a pre-req, and I discovered a Mole is simply a count of molecules. More useful than weight for measuring chemicals for a reaction.
Posted on 10/23/19 at 5:08 pm to tuptiger
A mole isn't a unit. It's a number of things.
12 eggs is a dozen eggs.
6.02x10^23 chemistry professors is a mole of chemistry professors.
12 eggs is a dozen eggs.
6.02x10^23 chemistry professors is a mole of chemistry professors.
Posted on 10/23/19 at 5:11 pm to MountainTiger
quote:
6.02x10^23 chemistry professors is a mole of chemistry professors.
This is the statement I don’t understand. So, why don’t you say the following is true?
1 dozen eggs X 6.022 times 10^23 eggs/ 1 dozen
6.022 times 10^23 eggs = 1 dozen eggs? 1 dozen eggs = 12 eggs.
Posted on 10/23/19 at 5:13 pm to tuptiger
Maybe if it was 12 mols it would be more clear. 
Posted on 10/23/19 at 5:13 pm to tuptiger
quote:
That’s my question
One dozen X 12 eggs/ 1 dozen
I never got how that was entirely related to the mole. I see how it’s related to unit conversions, but not entirely to the mole.
Unit conversions seem separate than the idea of the mole. Maybe the point was and is avagadros number substitutes as unit conversions.
Like time:
1 hour X 60 minutes/ 1 hour
Hours cancel. You’re left with minutes. But the mole is more complex.
This is what happens when teachers teach how to do a formula without explaining why.
Kids pass the tests but it's a waste of education once they forget the formula a month later and never actually had any clue why they were doing anything.
Posted on 10/23/19 at 5:19 pm to Get Real Bro
quote:All the Chemical PE exam consists of is 9 hours of drawing various unicorns, some of them prettier than others.
My guess is moles are make believe stuff, like unicorns.
Don't tell anyone.
Also, forget eggs and forget conversions.
1 dozen = 12
1 mole = 6.22 x 10^23
That's it.
This post was edited on 10/23/19 at 5:23 pm
Posted on 10/23/19 at 5:19 pm to efrad
But there is really no formula.
One mole of an element has 6.02214076×10^²³ atoms. One mole of water has 6.02214076×10^²³ water molecules.
One dozen eggs as 12 eggs.
One mole of an element has 6.02214076×10^²³ atoms. One mole of water has 6.02214076×10^²³ water molecules.
One dozen eggs as 12 eggs.
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