- 426
- 1 045 188
Chemistry university
เข้าร่วมเมื่อ 31 มี.ค. 2010
Chemistry lectures in small pieces by Dr. Wilson.
Systematic Treatment of Equilibrium
Here we examine the equilibrium of calcium fluoride dissolving in water. First an ICE table is used to estimate the calcium concentration. Then systematic treatment of equilibrium is used with the Ksp, Ka, Kb, Kw, mass balance, and charge balance equations.
มุมมอง: 2 334
วีดีโอ
Types of Analytical Techniques
มุมมอง 1.7Kปีที่แล้ว
There are two main types of analytical techniques; total analysis and concentration analysis. These broad categories are discussed in this video.
What is Analytical Chemistry?
มุมมอง 4.1Kปีที่แล้ว
Here we explore briefly what analytical chemists do. There will be more videos to follow in this series.
Drawing all Constitutional Isomers part 2
มุมมอง 1482 ปีที่แล้ว
Drawing all Constitutional Isomers part 2
Drawing all Constitutional Isomers part 1
มุมมอง 5932 ปีที่แล้ว
Drawing all Constitutional Isomers part 1
I love you
You are so kind.
Love it
I’m glad you enjoyed it.
thank you sir
You are welcome!
thank you sir
You sound like technoblade Sir
thats a cool looking pen man
best explanation for SN1 and SN2 reactions I have found by far, thank you
Nice pen !!!
Saw the whole playlist! You made it so easy to understand, even in my third language, haha. I subscribed to your channel; you are a great professor
Thank you, glad you found it helpful
Work on your drawing skills of orbitals. You have them in your mind, but you don't show them. Not good teaching.
Tnahk you very much... Beautifully explained 🎉🎉❤
Just a tiny error I’ve noticed at 5:50 the equation for n(B2) should have 6(-1), not 6(1) just for anyone copying this out 😊
Thank you for pointing that out. It is easy to forget a negative sign. I am glad I did correctly write that it has 3 B2s.
thank you very much
Thanks bro
Your pen makes me focused more
Where were you teacher since age ❤
Thanks helped me a lot
i love your pen
thank you!
Litterally the best point group identifying video I've ever seen
medieval ahh writing 😭😭😭
In last example why we write iupac name carboxamide??
Since it is just off of a ring it has that special name.
I watched the whole videos in this playlist, That is helpfull , thanks❤❤❤❤❤
I am glad you found them useful.
Neat pen
thank you lots! the way you explained it helped me envision the reason why double bonds have restricted rotation. thanks again!!
You are welcome!
Thank you so much SIR ❤❤
You are welcome.
Your videos are so helpful! thank you so much Professor!
I am glad you enjoy them.
😅
😅
😮
so zaitsev major goes after the one with the lowest H's and forms the double bond to stabalize the molecule after the leaving group leaves. The strong base deprotonates the H and the h leaves its electrons behind where the double bond is formed and stabalizing the molecule.
I have a question. I've been taught to go from one side of the molecule to the other, but when you did the last example, you started from the functional group, to the end on each end. What is the reasoning? Is it because we've already identified it as an anhydride(carboxylic acid-water) and we are working from inside to outside in abc order? I've only done organic chemistry 1 and it was a while back.
We need a consistent starting point for numbering. Often that is from one side to the other to minimize the numbers. In many functional groups they will be on the end of a chain like carboxylic acids or aldehydes. In the case of anhydrides and esters the functional group will be in the middle so we work from there.
In the 2nd example, the reaction created charges, but why? Shouldn't it neutralize any charges. It isn't energetically favorable
In that case SN1 may be more likely, but SN2 can still happen. NH3 is a good attacker and the leaving group is very stable. This video is more about how to draw a SN2 mechanism, even if it is less likely.
thanks ❤
i like your pen
2x speed moment
wooooow❤❤❤❤❤❤❤❤❤❤
What do you mean by just the spectroscopy
Using vibrational spectroscopy (IR) the sulfur oxygen bond shows it is a double bond.
First one i saw who brought the universal idea of entropy into account. Our teacher just had us memorise the definition. Love it
I read it in a textbook.
God you never mentioned what liquid did you add
I did the extraction with dichloromethane and the recrystalization from acetone. It is also possible to use diethyl ether for the extraction and ethanol for the recrystalization.
😅@@Chemistryuniversity
Question: why doesn't the Br radical attack the double bond(like in anti markovnikov)? Also, cool pen 😮
The radical is resonance stabilized. If the concentration of either HBr or Br2 gets too high, then addition to the double bond will occur.
cool pen 😮😮😮😮😮😮😗
This guy takes his handwriting and penmanship seriously, instant approval from me.
:)
second year chemistry student here, thank you so much!
You are welcome!
abbreviation of acetonitrile is either MeCN or ACN
Great video thanks!
Sweet pen as well! Cheers!
This very simple to understand.
شكرا لك بزااف