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sam#6364: I'm afraid my knowledge in acids & bases is too low to understand it, unfortunately
sam#6364: So; if I mix HCl (g) and H2O (l) I will get HCl (aq), yes?
anoymous#6642: yes
anoymous#6642: but remember that HCl (aq) doesnt have a bond between hydrogen and chlorine
sam#6364: In that case, if you want to make H2C... |
anoymous#6642: the reaction mechanism i just drawed is technically not correct. in some of the cases, one of the hydrogen-oxygen bonds will break the same way hydrogen chloride does
drakorio#3412: don't want to butt in, but afaik h2c03 does not really exist in carbonated water, most of the time it's just co2 chilling i... |
HacBe#4682: ok
anoymous#6642: because H2CO3 only is a weak acid
anoymous#6642: it can relatively accept a proton from a stronger acid, and when it does it can dissociate in H2O and CO2
HacBe#4682: So does H2CO3 automatically turn into CO2 + H2O without influences?
landsharkxx#9090: Also know as decomposition.
mono#8925... |
4'11 energy#5697: Im not one for sure lol
landsharkxx#9090: Tritium is dope af
landsharkxx#9090: What do you wanna know?
landsharkxx#9090: @Midge
Midge#5131: Can it be exposed to air
landsharkxx#9090: I mean it can but it will just disperse
landsharkxx#9090: If you're going to use it for your spinner I'd recommend a ph... |
anoymous#6642: i know it cant pass through skin
Midge#5131: Its most found in a liquid form
Midge#5131: so the tritium liquid paint stuff i can pour in anything and itll stay lit for 15 years?
anoymous#6642: normally, yes
Midge#5131: Ok
Midge#5131: Where do i get tiny vials
Midge#5131: Or how would i go about making a ... |
Midge#5131: like what?
Midge#5131: i want something that glows in the dark but not for only a couple minutes
anoymous#6642: idk
anoymous#6642: just google it
Midge#5131: there are none
anoymous#6642: well
i know there are phosphorecent plastics that glow all night
Mocxing#0080: "thats some high quality h-2-0".. was the... |
HalfPint#9207: good job
HalfPint#9207: @anoymous I can help you out on the free radical reaction
anoymous#6642: i dont recall posting a radical reaction
anoymous#6642: @HalfPint
HalfPint#9207: Oh sorry I mistook you as Sam
HalfPint#9207: @sam I can help you out on the radical reaction
landsharkxx#9090: http://unitednuc... |
RMZing#3258: A high schooler cannot be any kind of dedicated scientist
Amphethis#7443: thats what I was wondering. thought it was odd when I saw his ranking, even though I didnt know exactly what the role in question was.
Ouais#0164: Yes physical chemist
Ouais#0164: I actually work in a physical chemistry lab
Ouais#016... |
Ouais#0164: Physics would be better
Optimus#7128: ill be doing another one anyways
Optimus#7128: ya thats right
Optimus#7128: a physics course that doesn't require introductory physics
r0b0hase#0283: @Ouais what surfaces did you use so far and what are your observations in abstract? Do you compare different materials?... |
Ouais#0164: a lot
Ouais#0164: thats cool though we just look at what other groups make
jfly2fly#5465: Just been thinking about becoming a super-villain, was thinking of ways to destroy Earth
r0b0hase#0283: You wanna characterize my stuff too? Kappa
Ouais#0164: Maybe when I climb the echelons and can steer my own resear... |
Fee Fi Fo Fum#4258: That will take a lot of time
anoymous#6642: or a few of them
Fee Fi Fo Fum#4258: The gravitational binding energy of a planet of mass M and radius R is - if you do the lengthy calculations — given by the formula E=(3/5)GM^2/R. For Earth, that works out to roughly 224,000,000,000,000,000,000,000,000,... |
Couch#8131: Except it's in the form of chemistry.
anoymous#6642: can someone explain this to me plz https://cdn.discordapp.com/attachments/275423111661223936/283636146829918208/unknown.png
anoymous#6642: it belongs to this molecule https://cdn.discordapp.com/attachments/275423111661223936/283636303784837125/unknown.png... |
anoymous#6642: its a bèta ketodiëster
which reacted to 1,2 ethanediol
Midge#5131: Oh ok that helps
anoymous#6642: to protect the keto-group
anoymous#6642: so the next reagens will specifically react with the ester
Midge#5131: Its simple
Couch#8131: Speaking of keto.
Couch#8131: I'm riding ketosis right now, and it's gr... |
anoymous#6642: but you can see it is not one but two signals
anoymous#6642: you know coupling, right?
anoymous#6642: you have seen H-NMR, right
the spectra you just showed were IR spectra and we saw IR b4 NMR
anoymous#6642: according to wikipedia spin-spin coupling is a correct english term
Midge#5131: whos good at che... |
anoymous#6642: well got to eat now
anoymous#6642: bye
xSooi#3600: most right peak: right CH3 in molecule: triplet because it couples with 2 H's from CH2 next to it
2nd most right peak: left CH3 in molecule: singlet because it couples with no H's
3rd right peak: CH2 left side molecule: singlet because coupling with no H... |
catawamp#0181: You can solve it systematically
catawamp#0181: With linear algebra
catawamp#0181: Make it into a matrix vector equation
Midge#5131: Cata is lying
Aaron#0374: Thanks
catawamp#0181: It won't be faster unless you're a beast at reducing matrices though
catawamp#0181: Or have a computer
Midge#5131: K
kathy#08... |
anoymous#6642: tomorrow i'm going to post another NMR spectrum
of the second step of that reaction
as an example of a reaction that clearly wasnt finished yet
anoymous#6642: aka we didnt purify it well enough
anoymous#6642: and a little self test: when you see this, is this an NMR of a single compound
anoymous#6642: or... |
3spooky5u™#1000: i dont know anything, just have to wait till the profssional gets here
ttmx#3114: Or I'll just talk about fusion reactors
ttmx#3114: Its only a 30 second presentation tho
ttmx#3114: Nothing too ig
ttmx#3114: Big*
3spooky5u™#1000: just talk slowly
ttmx#3114: Thanks xD
3spooky5u™#1000: just get somethin... |
ttmx#3114: So
ttmx#3114: We produce loads of energy
ttmx#3114: Without wasting stuff
ttmx#3114: Bam envoirmently friendly
3spooky5u™#1000: u shud start it all gloomy
3spooky5u™#1000: and then get to the nice part
ttmx#3114: Except I have 30 seconds
3spooky5u™#1000: mhm
ttmx#3114: At the inverse speed of keemstar?
3spoo... |
ttmx#3114: They are efficient
ttmx#3114: In theory
3spooky5u™#1000: ah
3spooky5u™#1000: so you u went with the talk slowly route
ttmx#3114: No
ttmx#3114: I went with the 30 second route
ttmx#3114: Its
ttmx#3114: Such a small time
ttmx#3114: That was literally all I could say in 30 seconds
3spooky5u™#1000: ah so you ext... |
ttmx#3114: I think xD
3spooky5u™#1000: now u get to watch the ples finish theirs
3spooky5u™#1000: and hope they choke 👀
ttmx#3114: I was the last
3spooky5u™#1000: o
ttmx#3114: Almost last
ttmx#3114: 3rd last
ttmx#3114: And the 2 after me did a 10 sec presentation
3spooky5u™#1000: how many are in your class?
3spooky5u™... |
ttmx#3114: 27 ofc
3spooky5u™#1000: ofc
Aaron#0374: Chemical Reaction (balancing equation is hard because it takes time )
no one#7070: Agreed. But it can be fun.
landsharkxx#9090: Just because it takes time doesn't mean it's hard.
landsharkxx#9090: Balancing equations is quite easy once you do it constantly
pigeon.png#6... |
kian#7919: can someone help really quick
Thomas Kenji#2425: what's the question
Thomas Kenji#2425: i might be able to help
Thomas Kenji#2425: @kian
landsharkxx#9090: What?
kian#7919: hi
kian#7919: @Thomas Kenji so im doing this lab preparation and i just have to say what product i think will form and it was like an iro... |
kian#7919: oh yeah I get what you mean but we didn't have the masses for it
kian#7919: we literally just have the information of an iron nail gets put into a solution (i forget what solution it is)
Deleted User#0000: that probably matters
Deleted User#0000: what solution it is
Deleted User#0000: how else would you be a... |
kian#7919: http://prntscr.com/ecant7
kian#7919: thats all it gave us
landsharkxx#9090: Just observe the color change
kian#7919: ik but im doing the preparation now i havent done the lab yet
kian#7919: im saying how am i supposed to know what charge Fe is
kian#7919: im supposed to say the produc
landsharkxx#9090: But yo... |
kian#7919: thats what im doing right now
kian#7919: ^
Thomas Kenji#2425: Oh you're just creating hypothesises
kian#7919: ye
Thomas Kenji#2425: So for example
landsharkxx#9090: You don't have to be exact
landsharkxx#9090: It's just a hypothesis for a high school class.
Thomas Kenji#2425: "If the copper has a charge of p... |
landsharkxx#9090: Mass*
kian#7919: Yeah but how is that gonna help me
Thomas Kenji#2425: How many grams per mole for copper? For oxygen?
Thomas Kenji#2425: Try writing a chemical equation for each type of copper + O2
Thomas Kenji#2425: Look for a difference between the products
kian#7919: yeah it could be CuO or Cu2O r... |
Thomas Kenji#2425: Since one will bond to more oxygen than the other right?
Deleted User#0000: yea its probably copper(II)
kian#7919: ok ill say that then
kian#7919: I think i just guessed copper 1 cuz i wasnt sure
Thomas Kenji#2425: Wait why?
Thomas Kenji#2425: It could be either lol
landsharkxx#9090: Because color.
T... |
Thomas Kenji#2425: It does
Thomas Kenji#2425: If you heat oxidized copper in an oxygen free environment you will remove the oxygen
landsharkxx#9090: You heat copper. It forms a copper(II) oxide layer.
Thomas Kenji#2425: This let's you compare masses to determine if it's copper one or two
Thomas Kenji#2425: You heat it ... |
Thomas Kenji#2425: And yeah I'm pretty much just guessing too lol
Thomas Kenji#2425: But that is a real way to determine which copper is in your sample if it's already oxidized
landsharkxx#9090: We also have to remember that this is a high school chem class so they aren't going *that* in depth.
landsharkxx#9090: I don'... |
landsharkxx#9090: Are you legit learning orbitals?
kian#7919: yeah
kian#7919: quantum numbers or whatever
Deleted User#0000: dam
kian#7919: idk ill show u
Thomas Kenji#2425: It's not so bad
landsharkxx#9090: Like this?
landsharkxx#9090: https://cdn.discordapp.com/attachments/275423111661223936/284200535878270976/image... |
kian#7919: I'm in canada we dont really have AP classes
kian#7919: its grade 11 chemistry
Optimus#7128: eyyyy canada
landsharkxx#9090: Learning chemical bonds with orbitals is so amazing
landsharkxx#9090: Like why water isn't just a straight line.
Thomas Kenji#2425: I like hybrid orbitals
kian#7919: what even is it
kia... |
kian#7919: im in grade 11
landsharkxx#9090: You go into the good stuff in physical chem
kian#7919: is it hard
landsharkxx#9090: If you make it
kian#7919: yeah my teacher said this is his favorite chapter cause its really weird
Thomas Kenji#2425: That's a good way to describe it
kian#7919: he also said that it will "bre... |
landsharkxx#9090: Same^2
Thomas Kenji#2425: The only thing I'd say is hard is that none of it is what you expect at first
Thomas Kenji#2425: Like it's just not intuitive
kian#7919: when do ppl usually learn it
kian#7919: are u guys in highschool?
Thomas Kenji#2425: I learned it last quarter
Thomas Kenji#2425: I'm 24
la... |
kian#7919: theyre all pretty boring and dumb though
kian#7919: i much prefer learning the material
kian#7919: instead of doing that stuff
Vatablous#4766: Ok guys, I have a complicated question for you. In a test of what temperatures make sugar cubes dissolve fastest (with stirring), what would make it a fair test?
land... |
Ouais#0164: Pchem 2*
landsharkxx#9090: Pchem2 as in physical chemistry?
Ouais#0164: Yes
Ouais#0164: Particle in a box, vibrational motion and the such
landsharkxx#9090: Regards are sent
Ouais#0164: Ty you are v kind
landsharkxx#9090: Are you a chem major?
Ouais#0164: Yes
Ouais#0164: Im most interested in physical chem ... |
Deleted User#0000: Ah ^^
anoymous#6642: @Deleted User i think they mean there are several reaction products possible, but all with two oxygens in the molecule
anoymous#6642: https://cdn.discordapp.com/attachments/275423111661223936/284335534984265728/c5cp04551g-f1_hi-res.png
anoymous#6642: i found that online ^
Thomas... |
Deleted User#0000: Btw, what particle phase means ? It is liquid, solid ?
Thomas Kenji#2425: A particle isn't a liquid or a solid
Thomas Kenji#2425: I think
Thomas Kenji#2425: It's too small to be considered either
Thomas Kenji#2425: They're usually just held in suspension but that could be water, air, any fluid
Delete... |
not all peroxy radicals are peroxy acids
Deleted User#0000: Ok thanks !
CocoTheCormorant#0739: OH god I have an exam soon !
Sapience#1259: Hi
Sapience#1259: I'm doing a webcomic on chemistry
Sapience#1259: And i have a very strong passion for it
Sapience#1259: Ive done some characters but i can think of designs for som... |
Syncre#2955: That's weird
Deleted User#0000: https://en.wikipedia.org/wiki/Dimethylmercury
anoymous#6642: http://blogs.sciencemag.org/pipeline/archives/2013/01/09/things_i_wont_work_with_azidoazide_azides_more_or_less
anoymous#6642: https://cdn.discordapp.com/attachments/275423111661223936/284424605542776832/C2N14.png... |
Deleted User#0000: plus your fume hood
kian#7919: i have no idea what just happened in my chemistry class
kian#7919: my teacher talked about like a hundred things so quickly
kevo.chen#9397: What are you confused about?
kian#7919: "quanta" and all that
kian#7919: idk it was on quantum theory and the bohr model of the at... |
kevo.chen#9397: np
HacBe#4682: Related to this u can look for the franck-hertz-experiment
Deleted User#0000: is H2S polar just because of the shape of the molecule?
Deleted User#0000: otherwise i thought the electronegativity difference had to be greater than .4
Deleted User#0000: but its on the spot at .4
HacBe#4682: ... |
Deleted User#0000: ahh ok thank you
Deleted User#0000: i thought so but wasn't thinking in terms of symmetry
Thomas Kenji#2425: Symmetry is often as important consequential as dipole as far as polarity
kian#7919: can someone pls explain why quanta is specific values
kian#7919: and how did max planck even come up with i... |
kian#7919: im the one who knows nothing
kian#7919: ok wait one sec ill show u what i mean
Thomas Kenji#2425: okay
kian#7919: https://cdn.discordapp.com/attachments/275423111661223936/284565412585275403/IMG_9018.PNG
kian#7919: this
kian#7919: what does it mean
Thomas Kenji#2425: That picture is not very clear
Thomas Ke... |
kian#7919: i could just give u the section in my textbook and youll know what im saying
kian#7919: its online
Thomas Kenji#2425: what's the section title?
Thomas Kenji#2425: i'll grab my book
kian#7919: http://erichamber.ca/departments/science/dfung/pages/chemistry/chem11workbook/Chemistry%2011.pdf
kian#7919: section 5... |
Thomas Kenji#2425: https://cdn.discordapp.com/attachments/275423111661223936/284568174031273984/image.jpg
Thomas Kenji#2425: is this familier?
kian#7919: we haven't done that yet
kian#7919: ive seen that in 5.4
kian#7919: all we talked about previously was like the history of the atom and the previous models
Thomas Ke... |
Thomas Kenji#2425: but it simply HAS TO
Thomas Kenji#2425: it cannot exist between levels
kian#7919: so theres not really an explination why?
Thomas Kenji#2425: yet it somehow goes from one to the next
Thomas Kenji#2425: the explanation is that an electron is not a "thing"
Thomas Kenji#2425: ?
Thomas Kenji#2425: make s... |
Thomas Kenji#2425: the valence shell is the highest energy orbital
Thomas Kenji#2425: same thing
kian#7919: what are the magnetic and angular quantum numbers
kian#7919: i saw that in 5.4
Thomas Kenji#2425: there are four quantum numbers
kian#7919: what does that all mean
Thomas Kenji#2425: each of which are present on ... |
Thomas Kenji#2425: sometimes light does it too
Thomas Kenji#2425: but when a photon of light flies into an electron, it acts like a particle instead of a wave
kian#7919: i guess i could settle with just knowing that much but i want to know the "why"
Thomas Kenji#2425: the why to what?
kian#7919: why is it particle and ... |
Thomas Kenji#2425: I'm sure Planck didn't understand it all in one day lol
kian#7919: trueeee
Indaend#9188: oh man
Indaend#9188: dw guys its not that spooky
Indaend#9188: the schrodinger equation is just a wave equation
Indaend#9188: you get diffraction through a slit because that's how wave equations work
Indaend#9188... |
Syncre#2955: Ions are atoms with either a postive, negative, or neutral charge right?
Midge#5131: google
Deleted User#0000: There's no such thing as neutral charge
Deleted User#0000: It's either positive or negative
Syncre#2955: Oh
Syncre#2955: I thought if the protons and electrons cancel each other out?
Deleted User#... |
anoymous#6642: our prof of spectroscopic methods said that it was a bad spectrum
citizen typist#6165: That identifies molecules...?
Deleted User#0000: anyone know a simple dcl synthesis from d2?
Ouais#0164: Heat plus heavy water
Ouais#0164: Haha lol idk
Ouais#0164: Wait I misread that
Ouais#0164: Nvm
Zoroark173#0173: M... |
Zoroark173#0173: then need to find the moles
Zoroark173#0173: So you need to ook up (or calculate yourself, but aint nobody got time fo dat) the molar mass of the solution you're given, molar mass is in mol/g, and since you have grams, you can solve for moles
Zoroark173#0173: and then plug the mols into mol/L to get yo... |
anoymous#6642: but why do you use m for molarity?
anoymous#6642: normally you use C for that
Zoroark173#0173: I've always seen molarity as a big fancy M
Zoroark173#0173: and IDk, google images seems to have everyone using big M
Zoroark173#0173: https://www.google.com/search?q=molarity&biw=1920&bih=974&source=lnms&tbm=i... |
molar concentration (molarity) c: mol/L or M
molality (molal concentration) b: mol/kg
anoymous#6642: molality can be handy
bc not temperature dependant
r0b0hase#0283: and not pressure dependant 🤔
r0b0hase#0283: @anoymous did your prof say why it was a bad spectrum and what you could change to get a better one, like s... |
HacBe#4682: Because of thermal energie released
Emily#4400: Can someone help me understand Thin-layer chromotography experiment?
i know the steps but i dont know why
So why at firssst fatty acids is place in a polar solvent
then into a non polar solvent?
anoymous#6642: well
if your TLC is the same as ours
you have a po... |
Emily#4400: :yohaneThink:
Emily#4400: so the mixture originally was mixed with polar components?
Emily#4400: but still wouldnt they repel each other
Emily#4400: the unpolar fatty acids
anoymous#6642: post the method plz
Zoroark173#0173: at my college, they post the tests from the apst two years, for you to use to study... |
kian#7919: im gonna get them all confused lol
kian#7919: this stuff is all pretty crazy
Ouais#0164: Its pretty easy after you study for hours and hours
Ouais#0164: You can ask me if you have questions
cunmie#1248: dang
Enigma#0434: what?
cunmie#1248: the graph anon posted
anoymous#6642: *anoy
cunmie#1248: whoops i didn... |
the the numbers are obviously the hydrogens on the carbon atoms with the same number
"of" is "or" in Dutch (this is a print screen of my report)
Deleted User#0000: BCC structure is crystallization isn't it?
Deleted User#0000: crystal structures
Ouais#0164: I did it
Ouais#0164: Aced my first quantum exam
anoymous#6642: ... |
Punda#4673: @Swizzer Sorry, I am of no help in that area. Does the vitamin **have** to be released over an extended period of time?
Punda#4673: @Smochi @LewisLol Would one of you be able to help Swizzer?
LewisLol#7581: I'm afraid I don't know, sorry.
Punda#4673: @Deleted User Water uses energy to break apart the molecu... |
Punda#4673: Exactly @Deleted User
kian#7919: ok
Punda#4673: @Swizzer Is Shellac safe for ingestion? Isn't it some kind of resin..?
Swizzer#0541: Yes it's perfect safe in the food grade form not the nail varnish kind. It's basically the kind you would find on Skittles or M&M's shells
Swizzer#0541: When swallowed whole i... |
landsharkxx#9090: Energy is absorbed then it's endothermic.
Deleted User#0000: wait so if enthalpy lattice energy is greater than enthalpy hydration the solution becomes hotter no?
Punda#4673: Nope xD
Deleted User#0000: so it becomes colder
Punda#4673: More energy is required to break apart the bonds. So more energy is... |
Deleted User#0000: thanks
landsharkxx#9090: @Punda what's your major?
Punda#4673: No prob! Ahh, professors :3
Punda#4673: @landsharkxx Currently working on prerequisites for (hopefully) many majors. As of yet, I haven't declared any. Bio's an interest of mine
landsharkxx#9090: Oh that's nice. Anything specific in bio?
... |
Emily#4400: can someone explain what is steam distillation in simple terms?
Punda#4673: Essentially water is added to the distillation process of a liquid in order to regulate temperature and keep molecules from breaking apart.
DIO BRANDO#7954: @Punda like what are diff between the two polymerisations
Punda#4673: So a... |
DIO BRANDO#7954: so your in alkanes right
DIO BRANDO#7954: https://en.wikipedia.org/wiki/Cyclohexane_conformation this might help @anoymous
DIO BRANDO#7954: cause i cant explain indepth
DIO BRANDO#7954: as i am only y11 but we know a good deal about them
DIO BRANDO#7954: @anoymous chair, half-chair, boat, and twist-bo... |
anoymous#6642: not the values
i know those
(and we can use symbols instead of absolute values anyway)
anoymous#6642: but, like, you can give lots of dihedral angles that are actually redundant
DIO BRANDO#7954: well what does it look like so far
DIO BRANDO#7954: its like 10 pm here i gtg but i hope you get a good mark o... |
Hibiki#4566: Change in E = change in H under constant pressure?
Deleted User#0000: =tex w = -2.303 nRT log(\frac{p1}{p2})
MathBot#7353: https://cdn.discordapp.com/attachments/275423111661223936/286547550876467211/latex.png
Deleted User#0000: =tex \Delta E = q + w
MathBot#7353: https://cdn.discordapp.com/attachments/2... |
Syncre#2955: no I mean these people are getting jobs and degrees
Syncre#2955: And I can talk to them and converse on a topic that I know about as a youngster. It feels weird to talk to someone who actully is getting a degree and to understand what they are saying if you get my drift
shien#7452: guys i got 15/15 in my c... |
HacBe#4682: not sure if he meant H or H+
r0b0hase#0283: or H3O and not H3O+ MingLee
Deleted User#0000: Hi guys, can someone help me with chemistry exercice ? I have this combustion equation : C(25) + H(52) + 38 O2 ==> 26H2O + 25CO2 and i need to find the energy of the combustion ( i know it's 43kj.g^-1 but need to fin... |
Truthful#4139: Why
Truthful#4139: ???
Hibiki#4566: Obv gender studies
landsharkxx#9090: Business has the hottest grils unfortunately
Punda#4673: I'm sure they have the hottest grills
anoymous#6642: anyone here knows how to use adf?
anoymous#6642: it's to know which geometry optimisation is the best one
anoymous#6642: n... |
anoymous#6642: >_>
anoymous#6642: anyways
after nearly six hours
anoymous#6642: calculations are finally finished
badmath hype-train (<3 Togg)#6531: nice
badmath hype-train (<3 Togg)#6531: same
anoymous#6642: https://puu.sh/uxdlR/44f05fa80b.png
anoymous#6642: this is the result
badmath hype-train (<3 Togg)#6531: raman
... |
anoymous#6642: IR of the same molecule
anoymous#6642: all theoretically, ofc
anoymous#6642: the real spectrum is a bit different
anoymous#6642: experimental IR of the same molecule https://cdn.discordapp.com/attachments/275423111661223936/288446706750586882/unknown.png
anoymous#6642: source: scifinder
anoymous#6642: if... |
kian#7919: anyone here
Deleted User#0000: You can ask, when someone can solve it, they will.
Optimus#7128: too late
Optimus#7128: already being asked somewhere else
catawamp#0181: damn i wanted to help him
Deleted User#0000: Lol
Optimus#7128: you're on the other server!
Deleted User#0000: Traitore!
KittyWolf#4990: @Del... |
Deleted User#0000: Traitore!
Emily#4400: i dont understand why melting of ice is considered as endothermic?
Emily#4400: wouldnt make since its exothermic as more heat is required?
drakorio#3412: isnt it the other way around?
drakorio#3412: endothermic - you put heat inside
degu#7859: @Emily endothermic: "absorbs" heat ... |
TickTick#8767: lol
secr_steel#2256: lol
Kid.Finger#1762: are u sure
TickTick#8767: Yes
Kid.Finger#1762: i think is a gas
catawamp#0181: is mayonaise a metal?
secr_steel#2256: dumb whale
secr_steel#2256: yes
Kid.Finger#1762: ik jk
TickTick#8767: don't insult our members!
secr_steel#2256: mayonaise is bae
secr_steel#2256... |
secr_steel#2256: how bout uranium whale
TickTick#8767: I know a lot of friends who ask questions like that and while it is cringe, just answer!
secr_steel#2256: lol
Kid.Finger#1762: ik jk
Kid.Finger#1762: ik what iron is
TickTick#8767: I mean, I just found out what is a conjugate base and conjugate acid in great detail... |
TickTick#8767: I never knew
secr_steel#2256: lol
secr_steel#2256: JUST A prank BRO
Kid.Finger#1762: so just a prank brahh
TickTick#8767: uh. ok.
Optimus#7128: kicking
secr_steel#2256: no
secr_steel#2256: pls
secr_steel#2256: im here the longest
RMZing#3258: @secr_steel Please stop spewing random nonsense. Thanks.
secr_... |
Emily#4400: @drakorio @degu thank you guys for the explaination idk why i thought the other way around lol
Truthful#4139: You didnt know what a conjugate base or acid was?
Truthful#4139: Pre med students living up to their reputations
Deleted User#0000: Anyone here?
anoymous#6642: yes
degu#7859: @Emily you're welcome!... |
anoymous#6642: what's the excess of that HCl
sam#6364: n(NaOH) = 2,4 \* 10^-4
n(HCl) = 2,5 \* 10^-4
anoymous#6642: that means that there is 0.1 mmoles excess HCl, correct?
sam#6364: Correct
anoymous#6642: and in how much solvent is that dissolved?
sam#6364: v(NaOH) = 24cm^3
v(HCl) = 25cm^3
sam#6364: Only volumes given
... |
so you have 0.0001 mole HCl in 0.049 L H2O
anoymous#6642: from here on it should be clear, i think?
sam#6364: Ohh. Wait. HCl has H+ ions right?
sam#6364: It's H+ and Cl-
sam#6364: Oh I see now I think
anoymous#6642: HCl is a strong acid, so the concentration of H+ will be the same as the initial concentration of HCl
sa... |
anoymous#6642: it could also be between 1 and 2
anoymous#6642: it's just over 3 apparently
sam#6364: Ok, so. If I take -log(0.000**0**1 / 0.049)
sam#6364: I get the right pH value
anoymous#6642: yes
sam#6364: But 0.00001 / 0.049 Doesnt give me the initial concentration
anoymous#6642: wait
anoymous#6642: 0.0001
sam#6364... |
anoymous#6642: 2.5\*10^-4-2.4\*10^-4 is 0.1\*10^-4 and not 1\*10^-4 >_>
anoymous#6642: one sec
sam#6364: You need to \
sam#6364: the *
sam#6364: Did the same mistake earlier lol
sam#6364: So ``\*``
sam#6364: There we go
anoymous#6642: got to go now
sam#6364: Oh okay. Thanks for your help! :)
sam#6364: Much appreciated
... |
Ouais#0164: Ionize the cyclopentadiene -> smoosh it into an iron atom 😆
Charlich#9165: http://www.odinity.com/investigating-synthesis-reactivity-ferrocene/
Ouais#0164: All I see is that it "reacts" with the Fe
Ouais#0164: maybe it doesn have a specific name 🤷
anoymous#6642: it's complex formation, i think
Ouais#0164:... |
secr_steel#2256: i require help on Redox reactions
secr_steel#2256: how can H2O2 be both a Oxidation and a Reduction in different situations
Hibiki#4566: Depends on the reduction potentials
Hibiki#4566: How much it wants to give up electorns compared to the other reactant
Hibiki#4566: The one that has the higher potent... |
Deleted User#0000: Hi! I'm new here. 😃 I had a basic chem question I hope I could get help with
Deleted User#0000: I looked online for a similar question, so I could understand the answer and work backwards, and I think I have the correct answer , but I don't *understand* why its that answer
Deleted User#0000: **Calcu... |
∴ n = 4 × (5.2 × 10^24) / (6.02 × 10^23 )
∴ n = 34.6 mol
Deleted User#0000: afaik, my answers are correct-- I believe I understand the concept of the equation itself
Deleted User#0000: I know I'm multiplying ***N*** by the number of carbon/hydrogen atoms in methane molecule, and then dividing by agravados number (N*a*... |
anoymous#6642: so that means that the amount of particles methane is the same as the amount of particles carbon
anoymous#6642: and the amount of particles methane and carbon is 4 times smaller than the amount of particles hydrogen
Deleted User#0000: Yes
Deleted User#0000: Even though Methane may be comprised of multipl... |
anoymous#6642: idk if i can
degu#7859: @femamerica13 for what i seen on books and on the internet on the top there are the elements that are more easily oxidized (from most reactive to less reactive)
degu#7859: if you meant that fem
femamerica13#1287: yea, it seems like that in class
degu#7859: did you meant that?
fem... |
anoymous#6642: np
anoymous#6642: told my mom i would like to arrive around 8:30
she tells me that it's 30 mins driving
anoymous#6642: i ask to leave at 7:45, just to be sure
anoymous#6642: now my mom just f***ing told me we leave at 7:30 or not
anoymous#6642: WHILE SHE F***ING SAID LEAVING AT 8 WOULD BE EARLY ENOUGH
an... |
**(d) 0.5 mol of magnesium chloride, MgCl2.**
Would the answer be:
n = ((0.5 × (6.02 × 10^23 ) x 2
n = 6.02 x 10^23
Deleted User#0000: *blinks* No... that's wrong
Deleted User#0000: *blinks again* wait, no... it *is* right
kian#7919: @Deleted User just convert from MgCl2 to Cl, then convert using avogadro
Delete... |
Indaend#9188: now you know the answer
Indaend#9188: because you know how many MgCl2 there are
Indaend#9188: and you know how many Cl there are in one MgCl2
Deleted User#0000: For every one molecule of MgCl, there are two Cl
Deleted User#0000: 2:1
Deleted User#0000: .
Indaend#9188: yeah
Indaend#9188: .5 * 2 = 1
Indaend#... |
ttmx#3114: A and C
ttmx#3114: Haven't touched this for a year
anoymous#6642: it depends on the question :^)
but yeah, A and C are ground states
AP#2734: hey guys im a cs, math, physics guy trying to get interested in chemistry. do you guys have any "sexy"/"shiny" topics in chemistry that an outsider would find interest... |
r0b0hase#0283: Whats cs actually? 🤔
anoymous#6642: otherwise, try molecular modeling
it's interesting and heavily maths oriented
r0b0hase#0283: ^^^
AP#2734: comp sci
r0b0hase#0283: Ah alright
Domo#7483: try organic chemistry
AP#2734: does chem have "relativity" counterpart? something that's interesting just cause its ... |
AP#2734: Like inherently interesting / sexy concept
AP#2734: Like when you talk to someone about relativity it brings out the OoOoh energy mass equivalence, space-time dilation, world line stuff *in sparkly shiny font*
r0b0hase#0283: uuummmm... not a concept... but look at "breaking bad"... seems like that makes ppl wi... |
HalfPint#9207: ok bai
r0b0hase#0283: but thanks for motivating @HalfPint VoHiYo
HalfPint#9207: @r0b0hase ok...
Truthful#4139: Can the positoon
Truthful#4139: Of an electroon in a covalent bond
Truthful#4139: Be modeled by a diff eq or wave finction
Truthful#4139: Function
Deleted User#0000: https://cdn.discordapp.com/... |
Foorack#0001: B)
Foorack#0001: =tex t = (T*ln(0.01))/0.693
MathBot#7353: https://cdn.discordapp.com/attachments/275423111661223936/290901647658319872/latex.png
Foorack#0001: Again, I could be completely wrong. 😐
anoymous#6642: what was the formula of decay again
Foorack#0001: =tex Nt = No * e ^(lambda * t)
MathBot#73... |
anoymous#6642: yeah
but the way it is asked, it seems like you should find something independent of T
but yeah, i only find a solution with T in it
Foorack#0001: Did you get the same solution as I got? 😐
Foorack#0001: As far as I understand there are too many unknown values to get a formula without T...
anoymous#6642:... |
Deleted User#0000: so t= 5T y
Deleted User#0000: @anoymous Answer doesnt need to be independant of T 😄
Foorack#0001: Ah yes, sorry, I forgot a - sign in the decay formula
Deleted User#0000: yep its e raised to negative lambda t
anoymous#6642: @Deleted User yeah, it wouldnt make sense
but i'm kinda conditioned with que... |
Foorack#0001: 😐
anoymous#6642: i dont think they gave it a name
i cant imagine it occurs often
Foorack#0001: Okay thanks
brick#6063: @Foorack What book is that?
Zoroark173#0173: TIL that pH means negative natural log of an acid
Domo#7483: Why does sodium have a higher mobility than litium even though lithium has a sm... |
Domo#7483: im trying to put the formula in tex
Domo#7483: =tex J = cv_d = cuE = cu \frac{'Ecellz'}{\l})
MathBot#7353: https://cdn.discordapp.com/attachments/275423111661223936/291174208149651456/latex.png
Domo#7483: =tex u = \frac{ze}{\6πnr}
MathBot#7353: https://cdn.discordapp.com/attachments/275423111661223936/2911... |
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