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UNL Chemistry
Приєднався 1 лют 2016
This channel is for chemistry students from the University of Nebraska - Lincoln to ensure understanding of the proper lab techniques and procedures. Some of the videos may be specific to the chemistry UNL labs or UNL chemistry equipment, but the videos can be used by other institutions or individuals for educational purposes. All videos are created by David Fox. Please refer any questions on video production to him.
Spectroscopy Video
This video describes and illustrates everything you need to know about spectroscopy in the general chemistry laboratory. After watching and understanding this video, you should be armed with the knowledge to do well on your See the Light Lab.
Переглядів: 1 291
Відео
Titration Video
Переглядів 199 тис.8 років тому
This video shows the proper technique for doing a titration in the undergraduate chemistry laboratory. Also see the UNL buret video for more in depth detail on how to clean your buret: ua-cam.com/video/dJAWyvoSoLU/v-deo.html
Buret Technique
Переглядів 60 тис.8 років тому
This Video shows the proper technique for using a buret in the undergraduate chemistry laboratory. Pipet: ua-cam.com/video/gUdFCTy1kC8/v-deo.html Balance: ua-cam.com/video/1vXGrTDN8sc/v-deo.html Graduated Cylinder: ua-cam.com/video/eUIcebi1GVc/v-deo.html
Pipet Technique
Переглядів 32 тис.8 років тому
This video shows the proper technique for using a pipet in the undergraduate chemistry laboratory. Buret: ua-cam.com/video/dJAWyvoSoLU/v-deo.html Balance: ua-cam.com/video/1vXGrTDN8sc/v-deo.html Graduated Cylinder: ua-cam.com/video/eUIcebi1GVc/v-deo.html
Balance Technique
Переглядів 14 тис.8 років тому
This video shows the proper technique for using a balance in the undergraduate chemistry laboratory. Buret: ua-cam.com/video/dJAWyvoSoLU/v-deo.html Pipet: ua-cam.com/video/gUdFCTy1kC8/v-deo.html Graduated Cylinder: ua-cam.com/video/eUIcebi1GVc/v-deo.html
Graduated Cylinder Technique
Переглядів 42 тис.8 років тому
This video shows the proper techniques for using a graduated cylinder in the undergraduate chemistry laboratory. Buret: ua-cam.com/video/dJAWyvoSoLU/v-deo.html Pipet: ua-cam.com/video/gUdFCTy1kC8/v-deo.html Balance: ua-cam.com/video/1vXGrTDN8sc/v-deo.html
Graduated
Great video! The music is a distraction though.
What is the name of the colored liquid used to clean burette????
Hi, UNL Chemistry! I wanted to take a moment to express my appreciation for the incredible content you produce on your channel. Your videos are truly captivating and offer valuable insights. However, I noticed that there's currently no provision for subtitles or captions in your videos. As a student taking deaf study classes I've learned many deaf individuals rely on these accessibility features to fully engage with and understand the content. Including subtitles and captions not only ensures inclusivity but also expands your audience reach to individuals with varying hearing abilities and those who prefer to watch videos in noisy environments or muted situations. I believe implementing subtitles and captions would greatly enhance the accessibility and overall experience of your content, allowing everyone to enjoy and benefit from your amazing videos. Thank you for considering this suggestion, and I look forward to seeing your continued success on UA-cam.
Thanks a lot.
Very nice 👍👍👍👍
Acid attack
well done and useful but for Adapted Curriculum the music is an unfortunate distraction
what will happen when we add full required titrant immediately in one time in the solution?
Good
what's the answer?
Good video. Use it yearly in my honors physical science and college chemistry classes.
i dont know u cannot remove the bottom last drops
this is such bad technique holy shit
This is an excellent video for an introductory, college Chemistry class. Thank you.
this song slaps
Thank you!!
hii do you happen to know what makes them stop titrating? (05:54) how did they know why it's 15 1/2 NaOH to add,, is it just based on the color or? hope you can help :(
bad
🤤🤤🤤🤤🤤🤤🤤
wasnt useful at all. mid review
hehehe
Hi po
5.00 4.83 4.85 4.99 4.89 4.80 4.98 4.95 4.90 5.01 4.96 5.05 5.00 4.99 4.82 5.02 4.93 4.93 4.97 4.97 4.89 4.95 5.04 5.06 5.03 5.01 4.92 4.99 4.94 4.95
5.00 4.83 4.85 4.99 4.89 4.80 4.98 4.95 4.90 5.01 4.96 5.05 5.00 4.99 4.82 5.02 4.93 4.93 4.97 4.97 4.89 4.95 5.04 5.06 5.03 5.01 4.92 4.99 4.94 4.95
A great video.all are clear.Well done
anyone here because of OL class?LOL
hii do you happen to know what makes them stop titrating? (05:54) how did they know why it's 15 1/2 NaOH to add,, is it just based on the color or? hope you can help :(
thanks ❤🙏
سلاموووون عليكووووم
@@maruko3416 انتي وين ما اروح تجيني
Very gud
Wonderful
Well done
Very helpful
Very helpful I wish to work in the lab after my graduation
Wonderful vodeo
really good vid
Thanks
isnt it burette
4:10 Why doesn't the exact volume of water matter in this part?
because you're interested in the mass of KHP. Using the mass of KHP and the molar mass of KHP you can calculate the moles of KHP in the flask. After titration, you can then use the balanced chemical equation to convert from moles of KHP to moles of whatever your titrant is (in this case NaOH). And because you know the volume of titrant used to satisfy the reaction, you can calculate the concentration of NaOH by diving the volume of NaOH used by the moles of NaOH reacted (M=mol solute/L of soln)
short answer: the volume of deionized water doesn't matter because it won't change the amount of moles of KHP in the flask.
@@kevinseyedin4415 hii do you happen to know what makes them stop titrating? (05:54) how did they know why it's 15 1/2 NaOH to add,, is it just based on the color or? hope you can help :(
@@kiminonawa5598Yes, it's just based on colour change. Two years late, but I'm here for you!
What concentration of KPH
You could improve the focus of your audience and thereby vastly improve the video, by removing the irritating music. It is completely unnecessary for an educational video like this.
Shimmer down you can barely hear it
I enjoyed the music though.
Ok boomer🤣
Who pissed in you breakfast
Very cool🍑🍑🍑🍑
There is an error with the calculations portion of the video. The actual math portion is correct but the written formula is incorrect. It should be Final over Initial to get the volume used in titration.
Damn, he really goes off at 0:55
@Javion Dustin fuck off bots
Very helpful
Titration go crazy
This was very helpful
Tq u
Like
great...😊
it's very very helpful
good
this is very helpful, thank you so much!