# Avogadro's Number? Name That Constant! **URL:** \ **Category:** Miscellaneous and Personal Stuff I Must Share\ **Created:** [August 1, 2003, 5:41pm UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404 "2003-08-01T17:41:54Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![culture](https://avatars.discourse-cdn.com/v4/letter/c/958977/32.png) [@culture](https://boards.straightdope.com/u/culture)\ **Post date:** [August 1, 2003, 5:41pm UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/1 "2003-08-01T17:41:54Z")
What the hell is it with Avogadro’s number and the damn rolling-eyes smiley face? I assume that if I do not recognize the number you are supposed to be smarted than me? O.K., try these (all in standard SI units): 8.854x10E-12 6.626x10E-34 299792458 12.56x10E-7 0.529x10E-10 6.644x10E-27 -928.4x10E-26 9.109x10E-31 96485 1.38010E-23 Riddle me that, batman! If you actually know these, I grant you are at least as well educated as me (as if you care). P.S. No cheating you googling bastards! ---
**Author:** ![lieu](https://avatars.discourse-cdn.com/v4/letter/l/c2a13f/32.png) [@lieu](https://boards.straightdope.com/u/lieu)\ **Post date:** [August 1, 2003, 6:11pm UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/2 "2003-08-01T18:11:20Z")
I like pi. ---
**Author:** ![Khan](https://avatars.discourse-cdn.com/v4/letter/k/3ab097/32.png) [@Khan](https://boards.straightdope.com/u/Khan)\ **Post date:** [August 1, 2003, 6:14pm UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/3 "2003-08-01T18:14:33Z")
Permittivity constant = 8.854x10E-12 Planck’s constant = 6.626x10E-34 The speed of light = 299792458 Permeability constant = 12.56x10E-7 Bohr radius = 0.529x10E-10 Electron Mass = 9.109x10E-31 Faraday constant = 96485 Boltzman’s constant = 1.38010E-23 And you got me on these two: 6.644x10E-27 -928.4x10E-26 The point of the 6.02x10^23 is just used because it’s an extremely large number in addition to being a number that every ninth-grade science student knows. e^:rolleyes: ---
**Author:** ![Bosstone](https://avatars.discourse-cdn.com/v4/letter/b/22d042/32.png) [@Bosstone](https://boards.straightdope.com/u/Bosstone)\ **Post date:** [August 1, 2003, 6:15pm UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/4 "2003-08-01T18:15:16Z")
I have to say that this is the most amusing topic for a Pit thread I’ve seen in a while. 🙂 Though, I have to ask–you say you’re well educated, yet you imply you didn’t know Avogadro’s number at the top. (No high-handedness from me; I barely remember my high school Chem class myself.) Still, you know what it is. Are you sticking up for the Avogadro-deprived posters of this board? Or did you have to google for it to find out what it is? 😃 [sub]On preview: when come back, bring pi.[/sub] ---
**Author:** ![MLS](https://avatars.discourse-cdn.com/v4/letter/m/919ad9/32.png) [@MLS](https://boards.straightdope.com/u/MLS)\ **Post date:** [August 1, 2003, 6:20pm UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/5 "2003-08-01T18:20:31Z")
I don’t know the answer, but I do remember that back in high school when I did know it, there was a picture of Avogadro in the text book. We took one look at it and knew instantly that he was the kind of person who would come up with a weird number like that. ---
**Author:** ![GaWd](https://avatars.discourse-cdn.com/v4/letter/g/f08c70/32.png) [@GaWd](https://boards.straightdope.com/u/GaWd)\ **Post date:** [August 1, 2003, 6:24pm UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/6 "2003-08-01T18:24:14Z")
I don’t know constants, but I know vB coding… 😃 8.854x10[sup]12 [/sup] 6.626x10[sup]34 [/sup] 299792458 12.56x10[sup]7[/sup] 0.529x10[sup]10[/sup] 6.644x10[sup]27 [/sup] -928.4x10[sup]26 [/sup] 9.109x10[sup]31 [/sup] 96485 1.38010[sup]23[/sup] Sam ---
**Author:** ![Chefguy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chefguy/32/138_2.png) [@Chefguy](https://boards.straightdope.com/u/Chefguy)\ **Post date:** [August 1, 2003, 6:24pm UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/7 "2003-08-01T18:24:24Z")
> [@](#): > > \*Originally posted by lieu \* > \*\*I like pi. \*\* **I** like pi on a planck. ---
**Author:** ![Ferrous](https://avatars.discourse-cdn.com/v4/letter/f/8e7dd6/32.png) [@Ferrous](https://boards.straightdope.com/u/Ferrous)\ **Post date:** [August 1, 2003, 6:25pm UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/8 "2003-08-01T18:25:56Z")
> [@](#): > > \*Originally posted by lieu \* > \*\*I like pi. \*\* Best! Pie post! EVER!😃 _bowing before **lieu** _ ---
**Author:** ![lieu](https://avatars.discourse-cdn.com/v4/letter/l/c2a13f/32.png) [@lieu](https://boards.straightdope.com/u/lieu)\ **Post date:** [August 1, 2003, 6:27pm UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/9 "2003-08-01T18:27:45Z")
> [@](#): > > \*Originally posted by MLS \* > **We took one look at [it](http://gemini.tntech.edu/~tfurtsch/scihist/avogadro.htm)and knew instantly…** ---
**Author:** ![culture](https://avatars.discourse-cdn.com/v4/letter/c/958977/32.png) [@culture](https://boards.straightdope.com/u/culture)\ **Post date:** [August 1, 2003, 6:34pm UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/10 "2003-08-01T18:34:20Z")
> [@](#): > > \*Originally posted by BayleDomon \* > \*\*I have to say that this is the most amusing topic for a Pit thread I’ve seen in a while. 🙂 > > Though, I have to ask–you say you’re well educated, yet you imply you didn’t know Avogadro’s number at the top. (No high-handedness from me; I barely remember my high school Chem class myself.) Still, you know what it is. Are you sticking up for the Avogadro-deprived posters of this board? Or did you have to google for it to find out what it is? 😃 > > [sub]On preview: when come back, bring pi.[/sub] \*\* Sorry. I know what Avigadro’s number is, being the number of atoms in a gram mole of a compound. I just seemed a little elitist to include in a post, i.e. your second choise, sticking up for the innumerate. BTW, I did not mean to offend anyone. ---
**Author:** ![culture](https://avatars.discourse-cdn.com/v4/letter/c/958977/32.png) [@culture](https://boards.straightdope.com/u/culture)\ **Post date:** [August 1, 2003, 6:41pm UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/11 "2003-08-01T18:41:28Z")
> [@](#): > > \*Originally posted by GaWd \* > \*\*I don’t know constants, but I know vB coding… 😃 > > 8.854x10[sup]12 [/sup] > 6.626x10[sup]34 [/sup] > 299792458 > 12.56x10[sup]7[/sup] > 0.529x10[sup]10[/sup] > 6.644x10[sup]27 [/sup] > -928.4x10[sup]26 [/sup] > 9.109x10[sup]31 [/sup] > 96485 > 1.38010[sup]23[/sup] > > Sam \*\* Damn vb Elitist 😃 ---
**Author:** ![Quack](https://avatars.discourse-cdn.com/v4/letter/q/e99b99/32.png) [@Quack](https://boards.straightdope.com/u/Quack)\ **Post date:** [August 2, 2003, 2:44am UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/12 "2003-08-02T02:44:40Z")
We had that same picture of Avogadro in our Chemistry textbook. And we had a photo of Ernest Rutherford that made him look like Cliff Claven from _Cheers_…honestly. ---
**Author:** ![The\_Mad\_Hermit](https://avatars.discourse-cdn.com/v4/letter/t/b5ac83/32.png) [@The\_Mad\_Hermit](https://boards.straightdope.com/u/The_Mad_Hermit)\ **Post date:** [August 2, 2003, 2:54am UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/13 "2003-08-02T02:54:37Z")
Now we know who the **mole** is. ---
**Author:** ![Mercury](https://avatars.discourse-cdn.com/v4/letter/m/e95f7d/32.png) [@Mercury](https://boards.straightdope.com/u/Mercury)\ **Post date:** [August 2, 2003, 3:30am UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/14 "2003-08-02T03:30:08Z")
What Avogadro’s Number rolling-eyes smiley?! ---
**Author:** ![Q.E.D](https://avatars.discourse-cdn.com/v4/letter/q/51bf81/32.png) [@Q.E.D](https://boards.straightdope.com/u/Q.E.D)\ **Post date:** [August 2, 2003, 3:39am UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/15 "2003-08-02T03:39:01Z")
Probably 6.022 x 10[sup]23[/sup] :rolleyes:'s. ---
**Author:** ![biqu](https://avatars.discourse-cdn.com/v4/letter/b/7feea3/32.png) [@biqu](https://boards.straightdope.com/u/biqu)\ **Post date:** [August 2, 2003, 3:48am UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/16 "2003-08-02T03:48:45Z")
[**more numbers for you to memorize and recite to impress your friends**](http://home.earthlink.net/~mrob/pub/math/numbers.html) Did you know that the total number of possible [chess games](http://home.earthlink.net/~mrob/pub/math/numbers-11.html#l_p1_1000e50) is greater than one estimate of the number of [particles in the universe](http://home.earthlink.net/~mrob/pub/math/numbers-9.html#eddington)? ---
**Author:** ![Desmostylus](https://avatars.discourse-cdn.com/v4/letter/d/c57346/32.png) [@Desmostylus](https://boards.straightdope.com/u/Desmostylus)\ **Post date:** [August 2, 2003, 4:06am UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/17 "2003-08-02T04:06:47Z")
The missing two: 6.644 x 10[sup]-27[/sup] kg is the mass of a Helium atom. 9.284 x 10[sup]-24[/sup] J/T is the magnetic moment of an electron. ---
**Author:** ![kambuckta](https://avatars.discourse-cdn.com/v4/letter/k/53a042/32.png) [@kambuckta](https://boards.straightdope.com/u/kambuckta)\ **Post date:** [August 2, 2003, 4:10am UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/18 "2003-08-02T04:10:49Z")
> [@](#): > > \*Originally posted by Mercury \* > \*\*What Avogadro’s Number rolling-eyes smiley?! \*\* Bugger THAT…who the hell is _Avogadro_, and why does he have the privilege of a number next to his name? Signed: kambuckta…a _social_-sciences major, who wouldn’t know a ‘constant’ if she tripped over one on the way to the pub. 🆒 ---
**Author:** ![3\_14159265358979323846](https://avatars.discourse-cdn.com/v4/letter/3/eada6e/32.png) [@3\_14159265358979323846](https://boards.straightdope.com/u/3_14159265358979323846)\ **Post date:** [August 2, 2003, 5:03am UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/19 "2003-08-02T05:03:15Z")
> [@](#): > > \*Originally posted by lieu \* > \*\*I like pi. \*\* You’re not so bad, yourself. :rimshot: ---
**Author:** ![kaylasdad99](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kaylasdad99/32/3398_2.png) [@kaylasdad99](https://boards.straightdope.com/u/kaylasdad99)\ **Post date:** [August 2, 2003, 5:39am UTC](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404/20 "2003-08-02T05:39:50Z")
> [@](#): > > \*Originally posted by kambuckta \* > **Signed: kambuckta…a _social_-sciences major, who wouldn’t know a ‘constant’ if she tripped over one on the way to the pub.** I dunno 'bout that. If you tripped over the **same** one _every_ night, you might eventually get suspicious. . . 😉 [Next page](https://boards.straightdope.com/t/avogadros-number-name-that-constant/192404.md?page=2)