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This Map by Ian Crezzlelock - Wed, 15 Apr 2015 01:21:12 EST ID:sCaWq9AC No.76389 Ignore Report Reply Quick Reply
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What direction is this cold front moving?

What direction is the warm front moving?
Hugh Beblingdid - Wed, 15 Apr 2015 08:05:33 EST ID:+0Ci6TLP No.76390 Ignore Report Quick Reply
The pips point in the direction that the front is moving in. The warm front is moving north-east-ish, and the cold front is moving south-east.
CrazyFolksTribe !loJSOMZg0g - Wed, 15 Apr 2015 16:14:02 EST ID:2fwzfaCc No.76392 Ignore Report Quick Reply
This takes me back. I loved Earth Science.
Jarvis Tootbury - Thu, 23 Apr 2015 23:04:22 EST ID:fjkeo5Ps No.76418 Ignore Report Quick Reply
The cold front moves Western Eastwards while the warm front, resides in an area near quebec. An observation of the key shows that at 200 kilometers, Eastward becomes Westernly. The night falls on the marsupial at a longitude of for knocks K, along the grid-points of the map labled (above). My favorite numbers of it are;


1016 Is up at the top of the map near iceland. As you can see 1024 is a looped line. 1020 is a larger loop line looping above the poop floop. It should also be noted that although not visible, Russia, in the 2034 gridline, is still. This is due to the temperatures of the warm and cold front, rising leftward in the East and Eastward in the north-right.

How to calculate molarmass,lg pH, balance a chemical reaction? by Molly Sandlekat - Tue, 21 Apr 2015 16:55:26 EST ID:jEJwfr0J No.76408 Ignore Report Reply Quick Reply
1429649726555.jpg -(208777 B, 675x559) Thumbnail displayed, click image for full size. 208777
Title says everything. Teach me how to calculate molarmass, balance a chemical reaction, calculate pH with lg?
Molly Sandlekat - Tue, 21 Apr 2015 18:04:13 EST ID:jEJwfr0J No.76409 Ignore Report Quick Reply
Ok, so the pH level can be measured by the formula: pH=-log(concentration of substance)?
Lydia Blonkinson - Tue, 21 Apr 2015 18:08:08 EST ID:oDbdEczN No.76410 Ignore Report Quick Reply
I'm convinced you haven't tried to google any of these things before coming here. There's a thousand links that could explain it better than any of us, and have pictures to boot. That being said,
Molar Mass = the mass of 1 mol of that substance. Count the atomic mass of each atom in a compound, then add them together.
pH = -log([H+])
I'm not going to go into balancing equations.
nb because this is incredibly basic shit that google or even wikipedia can teach to anyone
Betsy Bebbleville - Wed, 22 Apr 2015 22:56:37 EST ID:NAGO08kk No.76417 Ignore Report Quick Reply
Ok, so to get pH you use the formula:

pH= pKa + log([A-]/[HA])

For molar mass, count the number of different atoms in the compound, then for each atom count the number of protons and multiply by Mp, add to the number of electrons multiplied by Me then add to the number of neutrons multiplied by Mn, then multiply by 6.02214129 x 10^23, add all the atoms and this gives molar mass

Then finally to balance this whole reaction you need to stand on one foot while doing it

reccomended info sources by Fucking Mellydale - Fri, 03 Apr 2015 18:13:04 EST ID:/JrLejjz No.76328 Ignore Report Reply Quick Reply
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so /chem/ is molbase.com a good sauce for chemical info? also it has a synthersis route option, is that good too?

what do you think of uncle fester books? good and legit chemist info? what about Pihkal and Tihkal?
Walter Dasslebanks - Sat, 04 Apr 2015 12:45:41 EST ID:Qb0fLU9z No.76338 Ignore Report Quick Reply
Is it legit to "inquiry" stuff at molbase?
Nigger Clovingkack - Sun, 12 Apr 2015 01:36:16 EST ID:T3+BR5r7 No.76371 Ignore Report Quick Reply
Uncle fester is a sketchy source. Some of it's good, some of it's dangerous.
Technically it's legal to inquiry anything if your not planning on doing it. Some chemistry forms (well most) will ban you for asking how to make illegal drugs. You can check their form rules. Pihkal and Tihkial are good but, like most lab reports they're meant for someone with a background in organic chemistry.
leia lele - Sun, 19 Apr 2015 21:01:14 EST ID:764po/Hc No.76403 Ignore Report Quick Reply
>Uncle fester is a sketchy source. Some of it's good, some of it's dangerous.
pls explain
project2501 - Mon, 11 May 2015 16:51:35 EST ID:muMoQJT9 No.76505 Ignore Report Quick Reply
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there are several techniques and practices in his books that are just irresponsible on the border to daft. a bad example i can pull of the top of my head, would be performing vacuum distillations with boiling chips
look up "Eleusis vs. Uncle Fester", somebody was nice enough to dismantle all of his ramblings.

shulgin is a good source, a great source, other than that you could - provided you know how to do check reading - use just about anything on the internet, depending on what you want to learn.

sciencemadness is good in general, just be polite and use the search function. thehive is partially quite good

can you id this? by Lillian Honeywell - Thu, 12 Mar 2015 12:32:49 EST ID:wC5/3Op6 No.76238 Ignore Report Reply Quick Reply
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saw this written down somewhere
curious to what it is
5 posts omitted. Click Reply to view.
Emma Nicklestone - Sun, 15 Mar 2015 21:17:00 EST ID:W9ZvC6sa No.76271 Ignore Report Quick Reply
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It's easy to establish that this is a silly drawing made by someone who has no real knowledge of chemistry, but....

But what do think the author was trying to draw? As in, what popular chemical would/does this most resemble.
Molly Musslehood - Mon, 16 Mar 2015 01:00:15 EST ID:uGD5aNS6 No.76273 Ignore Report Quick Reply
It almosts looks like it could be DMT. But its far off, like there's not supposed to be a ketone on the propyl side chain. So I have no idea quite honestly
Whitey Honeywill - Mon, 16 Mar 2015 12:19:10 EST ID:roMD3xgx No.76276 Ignore Report Quick Reply

This is proof that not all fat people are Americans.

Unless he was born in the US and went to that country.

I dunno OP, I thought it looked similar to MDMA but then i looked it up and its not that similar.
Nigger Dinnerhall - Thu, 16 Apr 2015 00:35:58 EST ID:mZxuqwbE No.76397 Ignore Report Quick Reply
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perhaps we can assume the author didn't know what he was doing and simply fucked up the drawing? Pic related.
Charles Derringnen - Sat, 18 Apr 2015 12:48:38 EST ID:eFMytRW7 No.76399 Ignore Report Quick Reply
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>informative post

Theoretical 10 to 12 hour MDA/MDMA formulation by Matilda Billingfoot - Mon, 06 Apr 2015 22:04:46 EST ID:uw3liBiQ No.76349 Ignore Report Reply Quick Reply
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So I have been thinking lately about something that might be a game-changer. I am not sure if it would even work, but in theory, the reaction should work for some substituted amphetamines, and the pharmacology seems to check out.

Basically, if d-amphetamine lasts about 4-6 hours, and MDMA/MDA last approximately the same amount of time, and vyvanse is simply d-amphetamine with an L-Lysine group bonded to it past the amine group, then if one were to attach an L-Lysine group to the MDA or MDMA, it should produce a similar result in theory.

The reaction basically involves producing a form of L-lysine with protecting groups on it, which is then attached to the substituted amphetamine, and then cleaving off the protecting groups at the end of the reaction to yield the lis-3,4-MDA or lis-3,4-MDMA

One variation worth noting is that it may require racemic lysine instead of L-lysine; I get the feeling that L-lysine is used because it's dextro-amphetamine with vyvanse, for a sort of balancing effect. Or, perhaps L-lysine is what's required and it doesn't matter the chirality of the substituted amphetamine.

But alas, the very skinny of the reaction is shown without the reagents shown to get from A to B (but is easily available via google). The top is protecting L-lysine to prepare for the following reactions. The middle is using it to make lis-3,4-MDA; the bottom is lis-3,4-MDMA.
Cedric Fudgeway - Mon, 06 Apr 2015 22:33:03 EST ID:RLSN+6eM No.76350 Ignore Report Quick Reply
I wish someone try this and report back. I wonder how it affect the neurotoxicity. Possibly lessened.
Matilda Billingfoot - Tue, 07 Apr 2015 00:01:57 EST ID:uw3liBiQ No.76351 Ignore Report Quick Reply
That's along the lines of what I was thinking. But the potential MAO-I properties of MDMA could cause it to intensify the L-lysine attached
Green Fox - Wed, 15 Apr 2015 17:03:04 EST ID:0YyKnwjY No.76394 Ignore Report Quick Reply

So what's the hypothesis? lys-MDMA will act as a controlled release mechanism as it does for amphetamine? I'm prescribed lys-dexamphetamine and it really is the same experience as regular dexamphetamine. As a prodrug, it should produce identical effects to the unmodified substance.

Perhaps you should put together a controlled MDMA dosage program on yourself for 10 hours, simulating this, and see if it really is desirable. The couple times I've done MDMA, redosing showed rapidly decreased positive effects, and inflated side-effects.

The basic objective is to superimpose a large number of the "dose response curves" (erowid) such that the functions mathematically add to a flat plateau for your desired time. Maybe take 75mg MDMA, then another 10mg every half hour for 2-3h, then 15mg every half hour.

Tussin extractions by Caroline Gangernud - Mon, 13 Apr 2015 01:08:57 EST ID:nB+byc/u No.76383 Ignore Report Reply Quick Reply
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What is the solubility of guaifenesin verses dxm in water?
William Dackledatch - Wed, 15 Apr 2015 16:08:17 EST ID:0YyKnwjY No.76391 Ignore Report Quick Reply
An acid/base extraction should be workable. Guaifenesin is somewhat polar. Literature says sparingly soluble in cold water, so warm water might work. The DXM hydrobromide would be water soluble, while DXM freebase wouldn't.

balla by Betsy Blubbleway - Tue, 14 Apr 2015 03:53:22 EST ID:K2zAb/ty No.76388 Ignore Report Reply Quick Reply
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A a spinning puck moving with a translational kinetic energy k1 and rotational kinetic energy k2 strikes stationary puck. What is the final kinetic energy of the second puck. Assume surface is frictionless.

Phentermine by Martha Bonnerpit - Mon, 13 Apr 2015 13:35:47 EST ID:N8anYK8h No.76385 Ignore Report Reply Quick Reply
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is it possible and/or practical to convert Phentermine to meth ?
or can Phentermine be used for recreation ?

pic unrelated
Cornelius Chirrylane - Mon, 13 Apr 2015 19:47:41 EST ID:uGD5aNS6 No.76386 Ignore Report Quick Reply
possible? maybe
practical? probably not.
there's an extra methyl group on that alpha carbon. Typically speaking removing methyl groups is difficult. Its been awhile since I've taken orgo and I know there are reactions to remove methyl groups, its a bitch.
Then, you would need to methylate that amine group. So there's another step. Just seems like too much work, isolating intermediates, lowering yield, a need for restricted reagents and complicated equipment its doubtful you could synth meth from this. But just my analysis.

receptor tyrosine kinase by Wesley Greenhall - Wed, 01 Apr 2015 11:55:29 EST ID:7Ue7eCYT No.76318 Ignore Report Reply Quick Reply
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Isn't scientists and mathematicians just the same as hipsters? I.e. "heterlocus autophosphorylation of receptor tyrosine kinasess yeah we get it, and to be honest i don't even believe in electrons or pi bonds, we're all the nucleus of one unifited atom if you ask me
Hedda Brupperman - Wed, 01 Apr 2015 15:51:35 EST ID:TtNn9wfR No.76319 Ignore Report Quick Reply
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Hipsters don't exist.

Proof empirically that hipsters exist.

>you can't
Albert Gackletire - Wed, 01 Apr 2015 17:33:54 EST ID:T3+BR5r7 No.76320 Ignore Report Quick Reply
Whitey Turveylock - Wed, 01 Apr 2015 23:31:24 EST ID:uGD5aNS6 No.76321 Ignore Report Quick Reply
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wtf are you talking about?
Augustus Boppertine - Sun, 12 Apr 2015 23:12:13 EST ID:6ptewwOU No.76378 Ignore Report Quick Reply
You are just an autistic faggot. Names are for a reason

Anti-science ranting (or rather ranting about anti-science) by Nigger Peckledane - Fri, 27 Feb 2015 14:45:39 EST ID:09vL/h+g No.76168 Ignore Report Reply Quick Reply
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If there's one thing I really can't stand about the internet, it's that I can't ever stop myself from getting pulled into stupid arguments. "But you're wrong!" etc.

But while I can laugh off kids who believe they're psychic or loons who think the moon is a giant jew that melted the banks, it stops being funny when we start talking about people who oppose science unilaterally or even just people who oppose science that disproves their currently held beliefs.

Right now my major bugbear is the anti-vaccination folk. The creationists and the like can get away with simply being ignorant, but antivax is straight up evil. But despite having the least amount of ground to stand on, they're the most stubborn and closed-minded group I've dealt with outside of /tinfoil/ (and oh how I wish they were all outside of /tinfoil/)

And it's like, what can you do? Nothing. And as if that wasn't enough, I'm starting to think that opposition to antivax is actually increasing as a result of people taking the time to debunk and disprove their rhetoric.

Anyway /chem/, what group of anti-science yokels are bugging you recently?
53 posts and 7 images omitted. Click Reply to view.
Hannah Hodgemot - Sun, 12 Apr 2015 11:35:52 EST ID:DIfPZb9L No.76373 Ignore Report Quick Reply
it's just a copy n paste, bro

So, do majority of chemists and biotech support GMO's?

All I see today is bunch of hippish people complaining about GMO"s and saying they should out right ban it
Lydia Dennerbut - Sun, 12 Apr 2015 12:38:10 EST ID:uGD5aNS6 No.76374 Ignore Report Quick Reply

Old thread, but yea most scientists at least on some level are OK with GMO. I personally am OK with GMO as a concept but I still see huge problems with the pesticides/herbicides. But there are massive misconceptions and fear-mongering alternative news sources that blow certain aspects of it way out of proportion. Most of it stems from a lack of understanding.
Lydia Dennerbut - Sun, 12 Apr 2015 12:42:34 EST ID:uGD5aNS6 No.76375 Ignore Report Quick Reply
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He's not a troll. I've seen his posts before in /spooky/ before. He is almost certainly a schitzo who IIRC took way too much acid back in the day and believes a succubus follows him around. Very interesting case nonetheless.

Thanks bro

nb for double post
Shit Bullyfuck - Sun, 12 Apr 2015 12:44:30 EST ID:MX8ylq9S No.76376 Ignore Report Quick Reply
>So, do majority of chemists and biotech support GMO's?
James Sullerway - Fri, 22 May 2015 05:41:59 EST ID:PmQEbrmC No.76566 Ignore Report Quick Reply
personally i hate GMO's because unlike every other student in my chem classes i am NOT going for a med degree and i HATE making drugs
for pay
and basically biodiversity is completely sabotaged by the corporate shit food that doesn't feed you that i never pay for
because good chemists are good cooks and don't need fast food
but doctors don't wait for shit, they don't value health
they just investigate what's in the shit
for their subsidized, unproductive, whale of a pork industry that is considered altruistic by every uninformed slop of an american that has never known what nourishment is because they haven't worked themselves exhausted in their life.

Learning Chemistry by Fanny Tillingcocke - Mon, 06 Apr 2015 00:44:39 EST ID:JVhZOljE No.76345 Ignore Report Reply Quick Reply
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Where to start learning chemistry?, I need to start from the most basic and go up from there.

Any recommended textbooks or lectures/online info?
Fuck Cluttingman - Mon, 06 Apr 2015 10:06:43 EST ID:MX8ylq9S No.76346 Ignore Report Quick Reply
Kahn academy is supposed to be good. Most General Chemistry college textbooks are the same, and very useful.

There's a shitload of resources of online, so just look around and sample them. Find one you like.
Matilda Billingfoot - Mon, 06 Apr 2015 21:52:31 EST ID:uw3liBiQ No.76348 Ignore Report Quick Reply
I learned a lot of basic organic chemistry reactions from reading PiHKAL and TiHKAL. A lot of it has its basis in redox reactions.
David Sankinbetch - Fri, 10 Apr 2015 11:36:01 EST ID:Ar94HQbd No.76358 Ignore Report Quick Reply
Browne and Foote et.a; Textbook of Organic Chemistry.
Just search for the PDF
Bombastus !!HToBa9dh - Sat, 11 Apr 2015 19:33:52 EST ID:ElYFdcKO No.76365 Ignore Report Quick Reply
College resources for general chemistry courses. Learn everything - even the maths. I'm not joking
There's a reason it revolves around basic information and structured that way. This is so you learn as well as you possibly can.

On that note, start your own chemistry shed and get your own apparatus and chemicals. You learn the best through your own experience and home chemistry.
Nigger Bardstone - Sun, 12 Apr 2015 01:11:42 EST ID:+LtBugrK No.76368 Ignore Report Quick Reply

a-fucking men my canuck brethren. aaayy meennn. my id is different because im out in the boonies but im the dude graduating and becoming a lab tech. i may have found a perfect spot in the 40 acres of bush my family owns to do just what you said, start a fuckin chemistry shed! woooo. its a solid 25 minute walk through deer trails and at times through relatively dense bush. time to start choppin trees boys

Gasses Sink/Float: Molar Mass or Density? by Shitting Beblingsutch - Sat, 11 Apr 2015 01:39:44 EST ID:vFjYr6dk No.76360 Ignore Report Reply Quick Reply
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If I want to know if one gas sinks below another, do I look at molar mass or density?
Cyril Brettingchodge - Sat, 11 Apr 2015 11:57:09 EST ID:72wOh3Tw No.76361 Ignore Report Quick Reply
Nicholas Guttingdock - Sat, 11 Apr 2015 12:09:46 EST ID:nJ2oIuZB No.76362 Ignore Report Quick Reply
This, commonly used haloalkane solvents like DCM are dense and usually form the bottom layer in a separation funnel.
Nicholas Guttingdock - Sat, 11 Apr 2015 12:21:17 EST ID:nJ2oIuZB No.76363 Ignore Report Quick Reply
Oh jolly african-american, I misread your post OP. Dun Goof'd. Still is useful I guess.
Bombastus !!HToBa9dh - Sat, 11 Apr 2015 19:31:53 EST ID:ElYFdcKO No.76364 Ignore Report Quick Reply
Density. Ether is commonly used to describe just this. It hugs the floor and is hard to suck up by fume hoods this way. It's also immiscible with atmospheric nitrogen and oxygen.

When it burns, it burns up, and rises. This is why it is so dangerous as it will (literally) scan your body with flames as it rises and gets hotter. Fun times.

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