Redox Reaction Experiment
ฝัง
- เผยแพร่เมื่อ 20 ธ.ค. 2018
- This video shows how two aqueous salt solutions are made, examines their electrical conductivity and the outcome of adding a copper wire to the solutions and pure water. It has been designed for teaching introductory chemistry and is supported by the National Science Foundation (grant number 1525557).
Creo que va a ser una actividad de la Pucp, así que lo traduciré:
Experimento de reacción Redox
Agua destilada
Test de conductividad eléctrica
Nitrato de plata
Nitrato de cobre (II)
Test de conductividad eléctrica (por segunda vez)
Alambre de cobre
Test de conductividad eléctrica (por tercera vez)
Alambre de cobre después de que la acumulación fue removida.
Una vista más cercana de la reacción
Producido por Resa Kelly
Animación: *nombres*
En consulta con: *más nombres*
Música: "Something Elated" ("Algo exaltado") de Broke For Free V
El material se basa en el trabajo respaldado por la National Science Foundation (Fundación Nacional de Ciencia), gracias a una subvención (donación).
xd
xd
Creo que la traducción no era muy necesaria tampoco xd
XD
XD
Loved the video. I'm surprised it doesn't have more views.
Thank you!
Loved the song...great song!
What is the type called when the wire started to look like wool when put into silver nitrate?
Thanks For The Experiment
Thanks a lot. Very helpful
In the second beaker silver nitrate, you add that silver accumulates on copper wire.
Thank you
So much thanks ❤️
Hi, I just want to ask what's the initial temperature of each beaker and also the quantity of the distilled water you put in the 3 beakers, thank you
Room temperature, but I did not record the temperature. It was not a hot day, nor cold maybe about 70 deg. F. I was not specific in the amount of water that was added. I just wanted to see what happened when the wire was placed in the different solutions.
Hi! I'm wondering, what's the concentration of the silver nitrate in the second beaker? Would the concentration have a noticeable effect on the reaction, or does it not matter?
I did not calculate the concentration when I did this experiment - so the solution is of unknown concentration. If the concentration were known, I might be able calculate the amount of copper it would take to react completely or I could predict the amount of solid that is formed. if I also knew the amount of copper used. Additionally, a more concentrated solution, might have an effect on the reaction rate, but we would need to study this to find out.
when you just wanna watch anime but you dont wanna fail chemistry ;-;
Mental note - must hire an anime artist to assist with future chemistry animations.
same duede. i feel u
Hi, why did you examine each distilled waters electrical conductivity first?
Thanks.
Hi Oscar, to assure that the water was pure and that there were no soluble ions already in solution.
what Is the white stuff that is forming in the beaker, and what is the blue color also forming in the middle beaker ?
Hi Amairany! Are you currently taking a chemistry class right now or have you taken chemistry before?
silver and copper nitrate i guess
Very nice video, bro
Could you write me the Formula for what is happening here? I get that the silver nitrate is reduced and that the copper is oxidised, but how would you write this Ionic equation in its entirety?
I could write the equation, but I wish not to. I hope this does not upset you. The purpose of the videos I make is to serve as a tool for instructors to have students discuss what they view. I would rather not prevent them from being able to have a meaningful conversation about it. However, If you can find a General Chemistry textbook, search for redox reactions, you should find a solution. OpenStax.org has textbooks available for free.
(Cu2+ + 2No3- ) ---> (Cu + 2No3 - + 2e -). E(V) = -0.34V
(2AgNo+ + 2No3- + 2e- ) ---> (2Ag + 2No3-) E(V)= 0.80
∆E(V)= 0.46v ----> Reaction proceeds as written. You get 0.46V per mole ratio; set multiple reactions in series and you can get higher DC voltage.
Since we know that E(v)cell is positive the free gibs formula ∆G=-n*F*E(v) predicts that the reaction is spontaneous; which it is as evident in the video.
So you get 2 moles of solid silver for each mole of copper anion in solution.
What song is that it's awesome great video too
"Something Elated" by Broke for Free V
What is that thing that formed around the copper wire?
E😂
K +Elly =Kelly ❤️❤️
This is a pure redox reaction
Hii, what is the purpose of electrical conductivity in a redox reaction?
Electrical conduction tests for the presence of aqueous mobile ions in solution.
Power
what is that white stuff on the second beaker?
I'm not sure what you are referring to?
She means the white algae-like thingy that accumulated in the copper wire
I guess it is silver, since copper displaces silver from its salt solution
oxidation video
Ohhhhoho 😗
conclusión ?
quemen la cato
el miguel se la come
Porque?
Hi, I just wan to know about how was the reaction that happened in beaker glass number 3, reaction beetwen Cu and Cu(NO3)2.3H2O?
Do you see a reaction? I do not, but it is interesting to see how this solution compares to the color of the product solution in the middle beaker.
@@resakelly2625 surely thanks!!!
hi can you explain the redox reaction in terms of oxygen
In terms of oxygen - why are or were you interested in oxygen? Can you tell me more?
@@resakelly2625 I just wanted to know....
😍
Hi i just I want to ask if you have a summary word of your work?
I do not have a summary word. Do you have a suggestion? Hopefully not boring or painful.
Hello classmate... Chemistry pa
What is your observation/result of the experiment?
Hi! What is the objective of your experiment?
I want students to compare how the copper wire responds when it is placed in pure water, aqueous silver nitrate and aqueous copper(II) nitrate. Then I want students to examine the three key pieces of evidence: the electrical conductance of the solutions before and after the reaction, think about what it is that accumulates on the wire and what happens to the solution in which the reaction takes place? What do you think happens?
@@resakelly2625 Thank you very much miss
@@resakelly2625 The electric conductivity is from the solution decreasing in pH... from HNO3 a strong acid formed in the reaction. I think what is happening is the free silver ions are swapping place in solution with the solid copper, as evidence by the water changing to a copper color. Why the solid copper attracts the silver ions I am trying to figure out. Maybe you can answer this for me? Funny it has been a year since your comment lol
What is the conclusion of your video?
Copper sometimes reacts and sometimes it does not. When it does react, lots of interesting things happen.
Hey hii
Naliligaw ka ata kapatiddddd
KEIKO XD
Aguyy
Love this video from India 😌🫶🏻❤️🩹