An example and explanation of beer lambert plots (calibration curves). Instagram: Lean.Think Website: LeanThink.org
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@baraskparas9559 Жыл бұрын
Best chemistry channel on KZbin by far for concise explanations . Forget CGI , old school by a professional chemist and educator is best.
@OldSchoolChemistry Жыл бұрын
Hey Barask, you are so kind. I appreciate your great support -thanks! I hope all is well in your neck of the woods.🙂
@baraskparas9559 Жыл бұрын
@@OldSchoolChemistry 9.57k onwards and upwards. I am currently using Bing creative commons images to illustrate the book.
@OldSchoolChemistry Жыл бұрын
@@baraskparas9559 That is fantastic! Send me a link to the book when you are finished:) Way to go!
@Tiffy_7654310 ай бұрын
Thank you. This is all I needed to know in one video.
@OldSchoolChemistry10 ай бұрын
HI Britney, I am so glad! Thank you for your comment:)
@aywantlbes93893 жыл бұрын
Wow just wow. Absolutely Great teaching
@OldSchoolChemistry3 жыл бұрын
Hi Aywan, I’m so glad, thanks! If you haven’t already, please subscribe. I hope your class goes well😊
@trohnb8104 Жыл бұрын
Thank you. You are my newest best friend and you don't even know it. Your teaching is excellent.
@OldSchoolChemistry Жыл бұрын
Hi Trohn, that makes me so happy...new friend;) Thanks!
@shivamkushwaha72853 жыл бұрын
Plz plz keep it up mam never stop making vedios helps helps us very much a veiwer from india
@OldSchoolChemistry3 жыл бұрын
Hi Shivam, thank you. I hope your class goes well. Please subscribe if you have not already!😊
@pavan62284 жыл бұрын
Thank you so much ma'am for making this video Really this is very helpful to me to understand.
@OldSchoolChemistry4 жыл бұрын
Imaginative Images, I’m so glad this was helpful. I hope your class goes well!!😊
@pavan62284 жыл бұрын
Ma'am can you make a video on this topic."Determination of available oxygen and manganese dioxide in pyrolusite ore by KMnO4". Because I can't a proper video no KZbin
@OldSchoolChemistry4 жыл бұрын
@@pavan6228 Thank you for the recommendation. Good luck!
@EP1CFLY1NGBR1CK Жыл бұрын
@OldScoolChemistry AMAZING... please explain why you are so straightforward with your explanation, but others beat around the bush like it's their job? just subscribed, keep this up!
@OldSchoolChemistry Жыл бұрын
Hi Vincent, I am glad you find it straight forward! Thanks for subscribing:)
@gabydescoteaux70304 жыл бұрын
THank you for your clear and very helpful videos!! :)
@OldSchoolChemistry4 жыл бұрын
Hi Gaby, thanks for your kind feedback. You are welcome. I hope your class goes well!😊
@louegebaguio170 Жыл бұрын
i am also an educator, nice explanation and easy to learn
@OldSchoolChemistry Жыл бұрын
Hi Louege, Thank you so much for that kind comment. Thank you also for your work with students! God bless you:)
@islandgirlzzs9 ай бұрын
I just subscribed love your explanation!
@OldSchoolChemistry9 ай бұрын
Hi Islandgirlzzs, THANK YOU! I am so glad you liked the video:)
@bensonboyi104010 ай бұрын
Wow, I understand very much. Thank you
@OldSchoolChemistry10 ай бұрын
Wonderful! That makes me so happy. Well done:)
@estelamino63562 ай бұрын
Thanks so much
@OldSchoolChemistry2 ай бұрын
Hi Estelamino, you are so welcome:) Thank you for watching!
@mohamedmahmoudayoupe7243 жыл бұрын
is there other maybe more easy ways to calculate concentration of unknown?
@OldSchoolChemistry3 жыл бұрын
Hi Mohamed, This is the only way with spectrophotometry. Remember once you have the plot you can simply use two points in the line to calculate concentration. You don’t actually have to find the equation of the line. I hope chemistry goes well for you. Please subscribe if you have not already. Thanks!😊
@mohamedmahmoudayoupe7243 жыл бұрын
@@OldSchoolChemistry thanks for replying but I meant way other than spectrophotometer Something that can done in simple lap without many equipments Great video btw 😊
@OldSchoolChemistry3 жыл бұрын
Possibly a gravimetric analysis with a precipitation reaction depending in the solute.
@silatopia3564 Жыл бұрын
thank you🌸
@OldSchoolChemistry Жыл бұрын
Hi Silatopia, You are so welcome!! I hope you class goes well:)
@negasiakalu69156 ай бұрын
Is that posible to record absorbance data greater than 1 during OD reading in spectrophotometer? because lambert beer law describes that absorbance greater than 1 can not give you straight line.
@OldSchoolChemistry6 ай бұрын
The absorbance is read on the spectrophotometer. It comes from the wavelength of the light absorbed which the machine reads as transmittance, and then is calculated to absorbance. Maybe I misunderstood your question. You may want to ask your question to your professor so they can clarify. Thanks!
@dilkianuththara12862 жыл бұрын
Thank you 🙏🏻
@OldSchoolChemistry2 жыл бұрын
Hi Diki, thank you for your comment ❤️
@huizylove4 жыл бұрын
in my work it asks for Wavelength and Absorbance can you explain what each means and how they connect with each other? Thank you
@OldSchoolChemistry4 жыл бұрын
Hi p h, wavelength is the distance between of a crest and crest of one wave of light. Wavelength is specific to the color of your solution. Absorbance, in essence, is the amount of light absorbed by the solution. The spectrophotometer is set to a wavelength to detect the amount of light absorbed by a sample at that specific wavelength. I hope that helps!!
@ultraviolet69892 жыл бұрын
Once I have determined the conc. of the unknown sample using the curve, do I need to multiply it by the dilution factor ?
@OldSchoolChemistry2 жыл бұрын
Hi Su zeO, no. This is because the concentration on the x axis was calculated considering the dilution factor. The concentration on the x axis should accurately represent the actual concentration put into the spectrophotometer machine. I hope that helps. Thanks!
@chernetwoju62842 жыл бұрын
This world is not fair. 6.37K followers for this channel is unfair. It should have been something like 6.37M.
@OldSchoolChemistry2 жыл бұрын
Thank you chernetwoju6284!!💗
@chernetwoju43062 жыл бұрын
@@OldSchoolChemistry, I thank you for your effort in making a contribution to knowledge that transforms humanity. As part of my PhD project, I was looking to identify an ester in some feed compound. I learned that it is possible to identify the presence of ester in organic samples through Ferric Hydroxamate Test. This test only shows the presence/absence of ester in your sample. It does not tell you the amount (concentration). That's where I came to know your channel. What if I measure the absorbance of my samples using a spectrophotometer and calculate the concentration of the available esters in my sample?
@OldSchoolChemistry2 жыл бұрын
@@chernetwoju4306 Wow! That sounds awesome. Creative idea to use spectrophotometry. I hope it works! Good job:)