Actually, I saw the thumbnail, mouse over it and saw three asian girls walking with back packs thru the woods, and my thought was, "this isn't going to end well"
This series is like the best thing ever, i just finished My 3rd semester of orga and its probably the class im doing the best in college and i still have some loop holes that this crash course is filling. Thanks for doing such an outstanding job.
@@Baxtexx organic chemistry is like a language, u need to practice a good bit to memorize its rules and structures but once you do things gets much easier do just keep practicing and you will get there eventually.
Wow this never really made as much sense to me in school as it did watching the animation is listening to you teach thank you so much for brightening my day
Best way to remember is through Cardio C - Charge (Positive ion stabilizes loss) A - Atom identity (Large electronegative atom stabilizes loss) R - Resonance D I - Dipole Induction O - Orbital (S character stabilizes loss)
Ah, this takes me back to the first class to ever make most of the class laugh when seeing the test because it was insanely hard; I dunno what the second semester teacher was thinking. I remember having to name molecules shaped like animals (eg. frogs). Good stuff!
Hello, Crash Course Videos have always been great, interesting, and fun to watch all at the same time! I have watched all the crash course science playlists and learned a lot from them! I would really appreciate it if you made a crash course series on Earth Science! Thanks!
Beautifully explained. wish this course started a year sooner cause i already passed OC. But it's still a great sources for refreshing the memory. definitely recommend to every science student👌
Mam Thanks a lot I love ur explaining way so much I need more frequent videos chemistry I just love this show very much Kudos very good job and info 😇😇😇😇😇😇🙏🙏🙏🙏🙏🙏👍👍👍👍👍👍😊😊😊😊😊😊
Well, the predator acid should actually be a weak acid so as to not to passivise the iron forming a protective oxide. It might just be super hot at have some other cathalitic properties.
The strength of an acid (how easily it can lose a proton) is not directly linked with its oxidizing capability. Hydrogen iodide is a very strong acid but is a weaker oxidizing agent than nitric acid.
Mam please answer me the following two questions. 1.what happens when methylcyclopropene is heated with HBr? 2. Although Nitrogen is more electronegative than carbon ,the direction of the dipole moment is towards the ring? Plz plz answer me.......plz
1 - Assuming the compound to be 1-methylcyclopropene (numbering is important) then it'll be brominated by the H-Br. First the pi electrons of the alkene double bond will bond with the H in H-Br, breaking the H-Br bonding and forming a bromide ion. The hydrogen will be bonded to the secondary carbon. This is because this will lead to the formation of a tertiary carbocation which is more stable. The bromide ion will then form a bond with the tertiary carbocation. 2 - The dipole moment is towards the ring as the nitrogen may donate its lonepair of electrons into the ring, forming three different resonance structures, all in which the nitrogen will have a positive charge. Therefore the nitrogen has a partial positive charge and the ortho & para carbons a partial positive charge. Thus, the dipole moment is towards the ring.
@@cheema9410 If methylcyclopropane was heated with HBr then nothing should really happen. There isn't any way the carbons could perform a nucleophilic attack of the H in H-Br.
Because the opening starts with a sci-fi reference, we should also discuss predator’s blue acid that can even melt things under water, any explanation for that?
I find more interesting than acid ,the ability to create a defense mechanism that contains it, In addition xenomorph blood is a potent molecular acid that contains within its blood, a highly corrosive substance
And to think there are probably some Xenomorphs roaming a planet in the universe somewhere right now. The universe is so vast it's mind-boggling sometimes.
Xenomorphs acid could very well be extremely oxidising, causing it to eat through steel. The acid would dissolve rust, the oxidiser would turn steel into rust. As these processes heat up the compounds and the steel, things escalate out of control. The part that kills humans is just the acidic element.
7:05 But negative charges are more stable on more electronegative atoms I think? Isn't that a factor to consider here? And what about sp2-3p overlaps being weaker than sp2-2p in case of carbon (where sp2 is formed from 2nd shell )??
The bigger the atom, the more space to keep electrons, and thus the less intra-electron repulsion there is (which increases stability, and thus inclination to ionize, making it a stronger acid). HF is a weak acid even if F is the most electronegative element, because fluoride is not as stable as Cl- or I-. Similarly, oxygen can have a lot of difficulty retaining a negative charge without resonance, while larger elements might not. Thus, Ph-Sh is a better acid than Ph-Oh simply because S is bigger, thus more tolerant of losing that H+. As for your bonding orbitals, it comes down to polarizability. You're definitely right that the 3P should be less stable given its size, but depending on the bonding, it might not matter enough to vastly reduce the Ka.
Just to add on to what Koda said, you also have the fact that the bond will be weaker due to the poorer overlap of orbitals and due to the lower electronegativity of the S atom will lead to the bond to have less ionic character.
The nose can't remember anything, it has no brain. Rather the brain can interpret singals from the nose and detect all those diferent scents. Still a remarkable feat.
Most animal fats are comprised of triacylglycerides (TAGs), these TAGs are esters derived from glycerol and three fatty acids. So, the fat itself is not acidic (I mean everything is somewhat acidic but in the general sense it's not) but the ester bonds in these TAGs may be hydrolysed to yield the free fatty acids. These free fatty acids are actually used as biomakers in archaeology. The term oil defines a large range of non polar compounds which are hydrophobic, and thus are all likely to be not very acidic - However, fatty acids are found in organic oils so...
This video still doesn't explain why strong acids eat through things in the first place. Why does a molecule losing a proton cause it to eat through something?
10/10 for thumbnail.
So True
Actually, I saw the thumbnail, mouse over it and saw three asian girls walking with back packs thru the woods, and my thought was, "this isn't going to end well"
This series is like the best thing ever, i just finished My 3rd semester of orga and its probably the class im doing the best in college and i still have some loop holes that this crash course is filling.
Thanks for doing such an outstanding job.
Depends I guess. I only understand maybe 10% of the content in this series.
@@Baxtexx organic chemistry is like a language, u need to practice a good bit to memorize its rules and structures but once you do things gets much easier do just keep practicing and you will get there eventually.
I'm a doctor who just forgot a lot of these basics. Thanks for the refresher!
*The Editor deserve the Oscar* 💓🙏
I’m glad I stuck with psychology as a career choice.
Wow this never really made as much sense to me in school as it did watching the animation is listening to you teach thank you so much for brightening my day
Best way to remember is through Cardio
C - Charge (Positive ion stabilizes loss)
A - Atom identity (Large electronegative atom stabilizes loss)
R - Resonance
D I - Dipole Induction
O - Orbital (S character stabilizes loss)
Ah, this takes me back to the first class to ever make most of the class laugh when seeing the test because it was insanely hard; I dunno what the second semester teacher was thinking. I remember having to name molecules shaped like animals (eg. frogs). Good stuff!
These are some of the best O-Chem videos. Thank you!
Hello,
Crash Course Videos have always been great, interesting, and fun to watch all at the same time! I have watched all the crash course science playlists and learned a lot from them! I would really appreciate it if you made a crash course series on Earth Science! Thanks!
I too would really benefit from this!
Beautifully explained. wish this course started a year sooner cause i already passed OC. But it's still a great sources for refreshing the memory. definitely recommend to every science student👌
This channel is just a blessing for chemical engineering students .
I'm writing my summary sheets for my upcoming test 1. The two things I was fuzzy on were inductive affect and intermolecular forces. Thank you!
Mam
Thanks a lot
I love ur explaining way so much I need more frequent videos chemistry
I just love this show very much
Kudos very good job and info
😇😇😇😇😇😇🙏🙏🙏🙏🙏🙏👍👍👍👍👍👍😊😊😊😊😊😊
I just like her way of teaching 💕💕
I was following it all fine until it got into the chemistry part.
ARIO!!!
Lol, same
I had some problems explaining s character effect on acidity to students, so this video was super helpfull, thank u!!!!
Ma'am looks Stunning as Always 😍😍😍
Well, the predator acid should actually be a weak acid so as to not to passivise the iron forming a protective oxide. It might just be super hot at have some other cathalitic properties.
The strength of an acid (how easily it can lose a proton) is not directly linked with its oxidizing capability. Hydrogen iodide is a very strong acid but is a weaker oxidizing agent than nitric acid.
@@Labgorgremlin nitric acid creats NO3- ions that react great in acidic invironments
With that thumbnail, would it be cool to see some of this on the video
Best freshup for a first semester recap exam. Thanks friend :)
This needs a longer episode
This video was crazy helpful and explained things very very well. Thank you!
when I see xenomorphs I click
Alein isolation Was a nightmare
Me everytime while playing 😨😨😨😨
And that scary footsteps sound.
Just like the last time with Ruby and Sapphire
Same
Sena Horoz awww thanks
I don't think I've ever seen a Crash Course that didn't have Hank, or his brother. A welcome change 👌
I really wish you make crash course architecture. I need some questions answered about architecture and I really enjoy watching crash courses.
😯 A big topic in a nutshell 💯
would have liked to see some theory crafting on what kind of acid, or if its possible, that the xenomorphs had.
I always get so focus on this that, it shocks me everytime I get to the end.
Wish I had this when I was taking Ochem! Oh well I have it now for the MCAT 😂
YES! I completely understand all of those words she used. Do you concur fellow scientists?!
Can u please give priority to organic chemistry it's really very helpful
That alien thumbnail is Def a good idea, I didn't even know there was an organic chemistry crash course, you should def use it again
congrats on 11M!
Mam please answer me the following two questions.
1.what happens when methylcyclopropene is heated with HBr?
2. Although Nitrogen is more electronegative than carbon ,the direction of the dipole moment is towards the ring?
Plz plz answer me.......plz
1 - Assuming the compound to be 1-methylcyclopropene (numbering is important) then it'll be brominated by the H-Br. First the pi electrons of the alkene double bond will bond with the H in H-Br, breaking the H-Br bonding and forming a bromide ion. The hydrogen will be bonded to the secondary carbon. This is because this will lead to the formation of a tertiary carbocation which is more stable. The bromide ion will then form a bond with the tertiary carbocation.
2 - The dipole moment is towards the ring as the nitrogen may donate its lonepair of electrons into the ring, forming three different resonance structures, all in which the nitrogen will have a positive charge. Therefore the nitrogen has a partial positive charge and the ortho & para carbons a partial positive charge. Thus, the dipole moment is towards the ring.
@@rossadams7946 1.if methylcyclopropane is haeted with HBr then what happened?
Plz answer me
@@cheema9410 If methylcyclopropane was heated with HBr then nothing should really happen. There isn't any way the carbons could perform a nucleophilic attack of the H in H-Br.
@@rossadams7946 Thanks alot ♥️🌞
Bravo!
This is so well done
Because the opening starts with a sci-fi reference, we should also discuss predator’s blue acid that can even melt things under water, any explanation for that?
This is definitely an excellent presentation. Thank you.
I find more interesting than acid ,the ability to create a defense mechanism that contains it,
In addition xenomorph blood is a potent molecular acid that contains within its blood, a highly corrosive substance
John greens as old as my dad, and I find that WEIRD
And to think there are probably some Xenomorphs roaming a planet in the universe somewhere right now. The universe is so vast it's mind-boggling sometimes.
You made an app?? Thank you so much 🥺 Damn my grades are gonna be really good regardeless of quarantine
Xenomorphs acid could very well be extremely oxidising, causing it to eat through steel. The acid would dissolve rust, the oxidiser would turn steel into rust. As these processes heat up the compounds and the steel, things escalate out of control. The part that kills humans is just the acidic element.
Got caught by Alien picture, but in the end actually learn something thank you for a very informative video.
I hope I finally will learn what molecular acid is.
I am a chemistry major. Why am I watching this😂? Anyway nice episode
Because learning places you into an excited state?
double checking factuality?
I am buisness student, so don't worry it's not weird.
Yes
Well explained
Bat ngayon ka lang naing content. HAHAHA Barely need this, thanks :)
I can keep track of each of these factors individually, but when we're combing all four I start to get lost in the sauce.
Is there a video explaining the same basics for basicity? Or is it just that weaker acids are stronger (conjugate) bases?
Gracias
Ohwell I would've needed that video 5 weeks ago for my final chemistry exam. Nevertheless I passed them 🥳😊
erm .. my mind is oriented to filter out information and find paradigms and substructures .. neat job there my friends ! x;]
Very interesting!
Whooosh!.
I can't wait to download the app!!! Exept here it's midnight and I hav to sleep.😭
I love your channel and videos😍
Amazing 🤩 content
Oh! New video from Crash Course about acidity!
But I understand *NOTHING!* 😳
7:05 But negative charges are more stable on more electronegative atoms I think? Isn't that a factor to consider here? And what about sp2-3p overlaps being weaker than sp2-2p in case of carbon (where sp2 is formed from 2nd shell )??
The bigger the atom, the more space to keep electrons, and thus the less intra-electron repulsion there is (which increases stability, and thus inclination to ionize, making it a stronger acid). HF is a weak acid even if F is the most electronegative element, because fluoride is not as stable as Cl- or I-.
Similarly, oxygen can have a lot of difficulty retaining a negative charge without resonance, while larger elements might not. Thus, Ph-Sh is a better acid than Ph-Oh simply because S is bigger, thus more tolerant of losing that H+.
As for your bonding orbitals, it comes down to polarizability. You're definitely right that the 3P should be less stable given its size, but depending on the bonding, it might not matter enough to vastly reduce the Ka.
Just to add on to what Koda said, you also have the fact that the bond will be weaker due to the poorer overlap of orbitals and due to the lower electronegativity of the S atom will lead to the bond to have less ionic character.
That's some strong acid! Madam.
Uh huh, uh huh, I understood some of those words 🙃
Does joules/ mole include any powerful acid/ base reactions something can cause?
Dope
I am studying online everything going on smoothly but I don't know why I came here I see suggestions and click
wow 10/10
Completely random fact:
The human nose can remember 50,000 different scents.
-SciFacts
I wanna smell you
hiroshima- sama 😳
The nose can't remember anything, it has no brain. Rather the brain can interpret singals from the nose and detect all those diferent scents. Still a remarkable feat.
@@g3heathen209 I came here to say that
@@j.stonehouse5004 me too 😂
Quality thumbnail lol
Cool
can you upload electronic crash coruse?
I love you
Crash course viewers can handle the Lewis Acid/Base definition
Fats and oils are acids too, right?
Most animal fats are comprised of triacylglycerides (TAGs), these TAGs are esters derived from glycerol and three fatty acids. So, the fat itself is not acidic (I mean everything is somewhat acidic but in the general sense it's not) but the ester bonds in these TAGs may be hydrolysed to yield the free fatty acids. These free fatty acids are actually used as biomakers in archaeology. The term oil defines a large range of non polar compounds which are hydrophobic, and thus are all likely to be not very acidic - However, fatty acids are found in organic oils so...
PKA RSK!
Without the thumbnail I wouldn’t know what it’s about.
This video still doesn't explain why strong acids eat through things in the first place. Why does a molecule losing a proton cause it to eat through something?
key thing i learned today: you take the tent, another friend takes the cooking gear, and I take all the food.
Uh oh if I watch these it’s gonna get me confused w basic chem rn
Will Hank Green teach us math ?
Xeno4life
hank green
How do you collaborate with people to make these video
That thumbnail is frieza form in bdz
Soooo was hoping for more alien stuff. But was left sadly dissapointed
Your app doesn't work
Does this actually make sense to anyone
oh, okay
2:04 - 2:07 1:54 - 1:57 can any one explain how she didn't just contradict her self
I don't understand anything after watching this
I’m a simple xenomorph when I see a xenomorph I click
Too fast to follow!!!
Try watching at half speed then! 😊
What I need to know is..can my laptop be used to defend myself from an alien acid attack?
When did I subscribe
Me brain be growin
;P #lovexenomorphs
StarShapes ya
Is crash course made of mortal kombat? I saw Alien on organic chemistry. And saw Sub zero on physics.
Man! I couldn't watch the whole thing. Can a strong molecular acid eat through a space ship or not?
Thought it was called alkaline
🍋
Cholesterol is classified as an alcohol… technically