Crash Course Chemistry: Outtakes #4

—
It’s the final Crash Course Chemistry Outtakes episode. Enjoy as Hank struggles to say all the things!
—

—

Transcript Provided by YouTube:

00:06
I’m glad I’m in the water it’s hot!
00:08
This is the Clark Fork River… there’s another line after that, there’s a lot more words
00:13
after that.
00:14
There’s so many fish on my feet!
00:16
In Montana, where I live.. something!
00:19
So the Clark Fork’s geochemistry explains why… crap.
00:23
So the geochemistry of the Clark Fork explains why acid rain isn’t as devastating here as
00:28
it is in say the Atar- Ata-Atarackdackdack.
00:31
This is about buffers Badududududududubububu.. dudududbububudub!
00:38
I didn’t see you point at me Nick!
00:40
(Nick laughs) How do I know?
00:42
Did you point at me?
00:44
Do it again.
00:45
Point.
00:46
Point more.
00:47
That’s creepy, that’s too much.
00:48
Did you point at me?
00:50
Nick: No I was waiting for you to stop talking.
00:54
(Hank laughs) Hank: That’s not how it works.
00:55
I talk forever, until you point.
00:57
Acid loses xm, and gains- and both ions gain x.. more x.
01:03
The symbol for this kind of equilibrium constant is ka for an acid or kb for a base.
01:14
A rate law in this form is said to be of the fourth order, we get that al- alu by adding
01:20
valghs the fourth.. hard.
01:23
A rate law in this form is said to be of the fourth order, we get that by adding together
01:29
the exponents..
01:30
(Nick laughing) Shut up..
01:33
A rate law in this form is said to be of the fourth order, we get this value by adding
01:38
together the exponents, three plus one, and adaxwehus four.
01:43
(Nick laughing)
01:45
Then solids like my table here or my phone, or m- this isn’t a phone..
01:51
I missed a, missed a, missed just a couple of words there.
01:53
So use the equilibrium expression for acetic acid, and put it, put it in, put in, put in
01:58
the ka and the equilibrium concentrations from the RICE table
02:02
So use the equilibrium expression for acetic acid, and put, p-, p-
02:07
So use the equilibrium expression for acetic acid and put it in the k, put in, put in,
02:12
put in, put one no not it put in, put in
02:14
Your pacemaker, hopefully you don’t have a pacemaker but if you do, that too, I don’t
02:17
know where I’m going.
02:20
Medium, glubleglah Nick: Gledium.
02:23
Hank: And another part where there being and glugghh
02:30
Dudududchibghaka..
02:32
Eeeeeeehhhh..
02:34
Which is why we call these things alkaline batteries
02:36
With a little algebra it’s simplifi- simplifies?
02:40
That doesn’t look simpler.
02:42
I guess you could call that simplified, but that’s, ah I mean I could use the quadratic
02:47
equation but that’s, it sounds just terrible to me so, let’s loshialuheua…
02:53
Heugh, that’s like quadratic, I don’t wanna do that.
02:58
So here’s a little trick to make this a lot easier.
03:01
Hairs a little trick!
03:02
Hairs a little trick!
03:03
-A rur, a rur a ru a random (Michael laughing)
03:06
My finger itches.
03:07
Why?
03:08
Why do I hear it?
03:14
If it’s so small that after rounding for significant digits it won’t change our answer blphoo!
03:21
The rest of the problem cancels out leaving x to equal 1.75 times ten to the negative
03:27
fifth.
03:28
Michael: It’s not five, it’s three.
03:29
Hank: Why did I say five?
03:31
Michael: (laughing) I don’t know!
03:32
Nick: Three sir!
03:33
Hank: It said it right there!
03:35
The rest is a breeze, with a couple taps of the calculator we find that the ph is 7.45-
03:39
it’s not, it’s not what it says..
03:41
The rest is a breeze, with a couple taps of the calculator we find that the ph is se-seveenn..
03:44
ahhhh!
03:45
That was too much, I didn’t know where the table was!
03:50
Is it too loud?
03:51
Put your headphones back on.
03:53
AEEAGHHH!
03:54
What if we tried the persshdebaa!
03:56
So badly that they can’t driven anymore and the last driver of a car that continues to
04:01
tch- drive.
04:02
Damaging your own car, and the last- Every reaction has a minimum amount of- minimount!
04:10
Minimumamount!
04:11
Minimumamount!
04:12
Minimumamount!
04:14
Every reaction has a minimum amount of energy- rrreouurequired.. to get it.. started..
04:20
Because it involves reactions that either produce, or consume react- plbphh!
04:25
I’ve told you about redox reaction before and if you haven’t seen that episode yet,
04:29
you should probably watch it before you watch this one..
04:34
Like for example, this kind of work!
04:36
Uoorgh!
04:37
It’s not mine, I don’t wanna break it.
04:45
Well it’s kinetic energy, the kind that comes from a particle’s speed- it’s actually the
04:49
literal speed of the atom.
04:51
So just like cars and demolition derby, all else-
04:54
(Nick laughing) What?
04:55
Nick: That didn’t work at all.
04:57
Hank: Like if you keep smashing the back of a guy’s trunk, you’re not gonna stop his car
05:02
from going.. cause there’s no engine back there..
05:06
We find that the rate of the reaction is 0.012 mol- moles.. that’s not very many moles!
05:14
It’s hard to have really 0.012 moles.
05:19
Equilibrium expressions are also used – oh blphh!
05:22
Equilibrium expressions also used bracketed concentrations with exponents and that’s no
05:27
accident, the- those- beh- the- thee!
05:35
Now if you’ve watched out episode on equilibrium this formula should w-wook..
05:38
Now if you’ve watched out episode on equilibrium you should bllpphhhhhhh..
05:41
(Nick laughing) No idea what I just said!
05:46
I’m sure that the graphics will make it clear.
05:48
Of their electrons, their chemical bonds, and their intermerrrr..
05:53
Like foams and gels and colloids like mayonnaise and rubber waxes and some biological tissues
05:58
such as fat!
06:01
Michael: Oooooooooh Hank: Zzzzzooozooooo
06:04
Resu- reszzzzzz.. zzzzzooozzoozzz.. zz!
06:07
In order to do it right, you have to type- tep tuptupitap!
06:10
Baptipbiptabab!
06:11
Moleculer … like, mol-e-q-ler … that makes sense?
06:15
Atomic sollage, like the name.. sollage?
06:17
Sollage?
06:18
I don’t want to say it now except tubdubtibow but it’s some ggurshbow..
06:22
The diamond in this ring- aaaahhhhhhh..
06:25
Fascinatingly enough only a few minor differences in an atomic arrangement allow an element
06:29
found on.. the.. bottom..
06:32
Once you learn the chemistry of these different netics- netics?
06:35
Both of these properties make ceramics useful in tonnes of ways which you’ve probably been
06:39
exploring.. when you were a toddler.. and got your first box of modelling clay.
06:45
Now if each of these half reactions occurred within contact of the other they’d spontaneously
06:49
got to equilibrium and-
06:51
Release beglagrableghraba!
06:53
Br- breleasing!
06:54
Breleasing a bunch of blenergy!
06:56
Thanks for watching this episode of Crash Course Chemistry, if you were listening that
07:00
avaca-avaconventional?
07:01
Avacontential.
07:02
Nick: That’s a great word.
07:03
Hank: I don’t think it’s a word though?
07:05
Nick: It is now!
07:06
Hank: You learn that electrochemical reaction are aaaah- aaaughaaaa..
07:13
The script supervisor wasn’t here, and Michael Aranda is our sound designer.
07:17
Like how Bohr figured out his model or Heisenberg used math to usher in qu-
07:21
Combustion, halogenation and dehydrananation.
07:26
Nick: Ooooooohhh
07:28
Hank: And Michael Arounda- Arounda?
07:30
Michael: Arounda?
07:31
Hank: Arounda?
07:32
This episode was written by ED Gonzales and edited by Blake DP- deep eee- de Pastino..
07:37
Our script supervisor was Michael Aranda.
07:39
He was also our graphic designer – graphic designer, apparently.
07:43
The script supervisor was Mmmmmmmichael Aranda.
07:46
Our scriulaaaaaalalaa!
07:48
Why?
07:51
This is the easy part!
07:52
And finally, you learned that chemical reactions actually happen in steps, that the slowest
07:56
step determines the overall rate of the reaction, and that the- reeeeeeason for thaaaaaat!
08:03
You’ve also learned that I should have the teleprompter going faster..
08:06
You also heard some of the properties of these solids-lelelalalalalala!
08:09
And diamond, are network- dah!
08:11
Heuh!
08:12
Heuuuuuh!
08:13
You learned that both diamond and graphite are both network solids made up of sure carbon
08:17
atoms, but, but, butbutbutbutbu, but but but butbuttbut butbu but but!
08:25
Michael: Goodnight everybody!