/sci/ - Science & Math

No.

>>7106775

I think the teacher was only referring to one of volume / pressure was changing in this instance, not that only one can change at a time. It didn't sound like OP understood the principles to begin with, so he probably misunderstood the teacher as well.

And if this is working his noodle, he needs to nail this shit down before bothering with internal energy, heat transfers, and work. Knowing what process you're working with changes those equations around significantly.

>>7089028

Lithium, at least, is rarely used because it is just expensive by comparison to magnesium. However, Lithium is very necessary in getting tertiary halides to react with ketones. You can do it with magnesium, but the yields suck and you get side products. Also useful in the Corey-House reaction by synthesizing Gilman reagents.

>>7084927
>anti-oxidants are mostly snake oil remedies

Antioxidants are free radical scavengers. They don't "remedy" anything, they simply attempt to remove one of the many things that causes your body to age.

>>7069950

Vat do YOU zink the purpose of ze question is?

>>7069918

Fairly sure you can find those functions anywhere online. For a hyperbolic 2-sheet it's 1=x^2/a^2 + y^2/b^2 - z^2/c^2

>>7065631

While there is a lot of critical thinking in how to apply the various functions related to the physical world, the truth is that most of them have already been derived for you into the forms that exist.

You should be able to find ways to make them work for any situation you come up to.

>>7063571

They're pretty heinous in their legal maneuvering. They've gotten so bad that countries have outright banned GMOs not for health reasons but to basically keep Monsanto from having legal recourse there.

Look up their business practices. They're about the most cutthroat firm I think I've ever seen.

>>7063459
>tell people something has preservatives, they freak out and refuse to eat it.
>tell them it has antioxidants and they gobble it up like candy

People are retards.

>>7063811

I didn't say I was going to give you the methods. This question is far too simple to be asking about. Solubility is one of the easiest properties to manipulate in separation schemes in chemistry.

>>7063805

It helps to know where you're stuck.

>>7063780

There really isn't anything but practice. One of the harder things for many calculus II students to develop is how to recognize which integration method to use at any given time. I knew one student who did all by integration by parts, which was both amazing and painful to watch when there was simpler / more direct methods to employ.

To each their own, though.

>>7063769

What a stupidly worded question. Drying a separated species after a separation and / or purification scheme is fairly simple and has nothing to do with the properties listed. The point of the question is how to separate the compounds, which is rather easily accomplished and can be done in several different ways. Drying is a non issue.

>>7055415

But that doesn't fit into an agenda, ergo it doesn't matter. Ironically, in a land where everybody is supposed to have been created equal by God, death is sure fucking discriminated against.

Whichever team has at least 1 more point than the other by the time the game ends.

I just want to know how many of these fuckers existed in the ocean at the same time, selectively breeding over millions of years until they got that fucking big. Just not enough food on the planet to feed the numbers necessary for evolving that big.

>>7042441

Well, there's always the "scaled up" argument. If you suddenly made a spider gigantic, like in the movies, it wouldn't be able to support the bulk of its mass on those eight legs. But that generally applies to specific species we know. Evolution could churn out all kinds of bizarre shit that fits within physical laws. And has.

>>7042425

So, the answer is "no".

>>7042418

Possibly. A giraffe, if it didn't widen its legs and slowly lower itself down towards the ground, would die if it suddenly leaned its head down to drink from a pool. The increased blood pressure to the brain would kill it.

So, a large animal like that, with probably a very delicate circulatory system, could have issues suddenly going from an increased pressure environment like under the ocean to a lot less pressure as it jumps jet fighter flight height.

>>7042408

Nobody is ever satisfied with an answer, are they.

>>7042338

Well, I guess it depends on what you define as "giant". On this planet alone, we've had evidence of animals both tiny and huge, and of all kinds. Insects, reptiles, etc.

I mean, dinosaurs and blue whales aren't huge enough for you?

>>7041827
>>7042393

The second clue is where the secondary characteristics crop up on the IR scan. Alcohols and phenols will have another stretch between 1250-970, but that is pretty much "it" for alcohols. A big broad bump around 3300-3000 and the O-H stretch 1250-970. Carboxylic acids will have another stretch in a very narrow band 1720-1700 for the C=O bond and another one 1320-1210 or thereabouts for the single bonded C-O.

>>7041827

I'll post a couple of pictures to give you a raw idea, but the main differences are both subtle and obvious. Both are going to have a rather broad bump in the 3000-3300 range, or more depending on the compound. This is the standard h-bonded O-H stretch. One of the main differences is that here you'll see carboxylic acids overlap with the methyl stretches located around 2950-2850. Alcohols rarely do that. So that's clue #1.

>>7038008

Also, resonance.