- Видео 113
- Просмотров 304 853
Emily Tsui
США
Добавлен 16 мар 2020
CHEM 20284 Spring 2021
CHEM 60614 Fall 2020
CHEM 20284 Spring 2020
CHEM 60614 Fall 2020
CHEM 20284 Spring 2020
Science Alive! 2021
Science demos for Science Alive! at St. Joe County Library in South Bend, IN
Video by Keaton Prather and Madeline Riffel
Video by Keaton Prather and Madeline Riffel
Просмотров: 683
Видео
Voltammetry considerations: electrode selection, preparation, polishing
Просмотров 3,7 тыс.2 года назад
A video with a quick description of a three-electrode setup, as well as examples for how to prepare working, counter, and reference electrodes. Video by Michael Seo and Keaton Prather.
L36B Rate-determining steps
Просмотров 7143 года назад
Using rate-determining steps to simply rate expressions. L36, Apr. 26, 2021 CHEM 20284
L36A Elementary steps
Просмотров 3433 года назад
The relationship between mechanisms, elementary steps, and rates. L36, Apr. 26, 2021 CHEM 20284
L31 Integrated rate laws
Просмотров 3983 года назад
Preliminary discussion about integrated rate laws for first, second, and zero-order reactions. L31, Apr. 14, 2021 CHEM 20284
L28 Electrochemical measurements
Просмотров 4,5 тыс.3 года назад
Short description of potentiometry and voltammetry. L28, Apr. 7, 2021 CHEM 20284
L25B Potential Diagrams
Просмотров 8653 года назад
How to relate standard reduction potentials in a Latimer diagram. Disproportionation! L25, Mar. 31, 2021 CHEM 20284
L25A Thermochemical Cycles
Просмотров 4713 года назад
Using reduction potentials in thermochemical cycles with equilibria. L25, Mar. 31, 2021 CHEM 20284 not from 2020! hooray
L24 Nernst Equation
Просмотров 3,6 тыс.3 года назад
Discussion of non-standard cell conditions and how they relate to potential, derivation of the Nernst equation. L24, Mar. 29, 2021 CHEM 20284 (Recorded 2020)
L22C Standard Reduction Potentials
Просмотров 1,4 тыс.3 года назад
Discussion on standard reduction potentials and how to use them to calculate cell potentials. L22, Mar. 24, 2021 CHEM 20284 (originally recorded 2020)
L22B Cell potentials
Просмотров 1,3 тыс.3 года назад
Describing what a cell potential from electrochemical cell is. L22, Mar. 24, 2021 CHEM 20284 (originally recorded last 2020)
L22A Cell notation
Просмотров 1,4 тыс.3 года назад
How to write down voltaic cells with cell notation. L22, Mar. 24, 2021 CHEM 20284
L21B Balancing redox reactions
Просмотров 5693 года назад
How to balance a redox reaction. L21, Mar. 22, 2021 CHEM 20284
L21A Redox reactions
Просмотров 6443 года назад
Introduction to redox reactions, half-reactions. L21, Mar. 22, 2021 CHEM 20284
L20 Reactivity of metal complexes
Просмотров 5333 года назад
Discussion about ligand substitution. L20, Mar. 19, 2021 CHEM 20284
L18A Colors of transition metal complexes
Просмотров 4733 года назад
L18A Colors of transition metal complexes
L15A Intro to bonding in TM complexes
Просмотров 3013 года назад
L15A Intro to bonding in TM complexes
L14B Isomers in coordination complexes
Просмотров 2333 года назад
L14B Isomers in coordination complexes
Very nice
Please make playlists 🙏🏾🙏🏾🙏🏾
Great explanations. Was very helpful, thanks :)
OMG such a great explanation!!! Thank you so much!
I saw that ham sandwich in there.
Thank you 🙏 Emily ❤
What a spectacular lesson!
Euler's formula and the matrix representation of complex numbers make rotations easy, if you know their properties.
Thank you very much, i didn't understood in a first place where did the T2g symmetry came from the ligands
Thank you
So helpful ❤
Do new video
Excellent explanation 🙂👏👏❤ indeed you are a life saver
Outstanding lecture -- excellence
Thank you, very much
Any one from India 😮
Amazing! Very beautifully explained. Thanks.
What the hell are you god?
i love u woman
Thank you so much. Finally i can understand t_t ❤
Nice Video.
Please solution this problem One gram of zinc metal dissolved in a solution of hydrochloric acid with a concentration of 6 molars, dilute it to 250 ml. Take 25 ml of it into a polarography cell, and the polarogram shows a voltage wave at -0.65 volts (assigned to Cd impurities), a diffusion current equal to 32 milliamps. If we add to the cell containing the zinc solution 5 ml of Cadmium chloride concentration is 0.0005 molar, and when taking a second crystalogram, the diffusion current was 77.5 milliamps. Calculate the weight percentage of cadmium impurities in zinc metal.
That was very beautiful😍🥺!
Awesome presentation. So clear and easy and pleasant. Thank You
Thank you for saving my semester Emily!! All the way from South Africa
thank you for the video! were you writing backwards? .... i was too impressed to pay attention
i think they use mirror some how!!
how does she write that?
Tnx a lot
❤❤❤ very inspiring video.
Thanks Emily, great video.
So the reference electrode is where oxidation occurs and attracts the chloride ions into the tube?
I might be wrong, but shouldn't the Nernst equation reaction Quotient be Oxidation/reduction - for at least a galvanic cell?
Good
How do u write like that😂
Great video! Thank you so much!
Searching for L21 example 1 & 2 can't find
Searching for L21 example 1 & 2 can't find
I agree with Ulyana's comment. I am electrical engineer and we are working on some potentiometric sensor and wanted to brush up my electrochemical knowledge. Awesome lectures however some lectures have same series number despite having different content. Can you please fix that by at least creating video list. Thanks for your hard work!!
the colours and setup with the glass are great! the explanation is also pretty well done
are you writing backwards?
was thinking the same
Great mam. From India🇮🇳
you are smart and very cute and lovely, thank you <3
Super helpful! Thank you
thankyou .
I thought total SE = LFSE + nPE where n is number of electron pairs.
Thank you!! It was really useful!!
7:12 , BF3 has 2 C3 axis right? because turning it clockwise and anti clockwise makes different symmetry 'configuration'? Just want to confirm this.
You are amazing!! These videos have helped me so much!! God bless!!
This whiteboard squeaking is driving me crazy
Hello everyone! I have a question about CV. It is known that current in CV depends on different controlling mechanisms: at low potentials before peak current there is surface control and after - diffusion control. Also it is known that changing of sweep speed give us information about surface or diffusion limitation of our reaction. But i cannot understand how type of limitation of our reaction connected with CV limitations at different potentials...