Acid-Base Reactions and pH

[@ahershe3]

I'm paying $20000 a year to watch this during my Biochem lectures. The professor I'm paying for doesn't give a shit if I learn the material or not. Your delivery is much clearer. Thank you for taking the time to do this.

[@doaajbr3605]

😢😢

[@craigpedersen6513]

Wonderful lectures: full of complex data and easy to follow. You are an excellent teacher~

[@masoudvaseghi7452]

You are the greatest teacher that i have ever seen

[@natalieg8573]

Okay but these videos are seriously so helpful

[@MrInterpriser]

Wow, that is awesome! Thank you for posting.

[@hrperformance]

I was going to ask if you could do physics lectures as well but you already do so I am extremely happy! XD

[@thebeets6055]

Your videos are incredible! Thank you

[@isaackizito6232]

you are such a grate lecturer

[@shahadalsenidi8039]

Thank you very much!

[@CAgal1981]

Great lecture thank you! at 4:!6 you said 10 to the negative 10, did you mean to say 10 to the negative 7? I just want to make sure I understand this correctly! thank you

[@norrisjanoudi6771]

It is as written: 1.0 x 10 to the -7. All you have to do is inverse log of -7 on calculator.

[@Jerrod190]

He meant 10^-7

[@songthanh896]

Really great job! Thanks a lot!

[@bitasadeghi7995]

no wonder why I never liked bio, because no one was teaching it to me in the right way, now eveything make sense I can't believe ive been missing on all this info

[@hassansaheed6332]

Is there telegram link for all Ak lectures?

[@johntindell9591]

Thank you very much

[@mmm3695]

What units are the concentrations measured in?

[@junczhang]

thank you so much!

[@arunkumars6257]

Thank you!

[@zhixiantaivieve]

great ! salute !

[@amnamehmood7659]

Thanks a ton!

[@ZahraaRiyad]

thanks .can you make a lecture about importance of ions in the body ,please?

[@sadafshefa2285]

The best

[@bawanomer1244]

Thanks

[@rassimsimou1594]

Good

[@robindelilah5153]

am i the only one who thought he was making a pun at 11:38

[@johnsantalucia7290]

Most of this lecture is correct, but there are 3 things that are not correct. 1. The bases of DNA are VERY polar - they are highly soluble in water and have dipole moments of 4.5-7.5 Debye -- compare that to water which has dipole moment of 1.8 Debye. 2. As a result of the bases being polar, they do NOT participate in hydrophobic interactions. Stacking is basically London-dispersion interactions (which he did bring up) and dipole-induced dipole interactions. 3. He completely left off discussion of counterions like sodium, potassium, and magnesium which are critical to stabilizing the electrostatic repulsion of the phosphates. If you are interested in more about this topic, please see the paper: SantaLucia, J. "How much free energy is absorbed upon breaking DNA base pairs?" (2018) Phys. Life Rev.

[@MikasaAckerman-hx3dk]

The bases of dna are non polar. Check on google

[@hananfael7871]

Thanks for your valuable videos, BUT you have made a mistake in this video!! When H+ concentration is equal to 10x10-8 the pH value of the solution is 7 NOT 8, in this case, as the concentration of proton is less than 10x10-7 which found in pure water, then pH considered to be 7 as the concentration of protons those are coming from water dissociation is much higher, and it will determine the final pH value.

[@minaatef1551]

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[@marcomobile8195]

pH=-log (H+ activity) not H+ concentration ! That is why pH can be negative.

[@kaylalarue3544]

bring back the Rambo camo headband, AK...

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[@klaudiagurazda9488]

thank you so much!

[@ventsislav1796]

Thanks a lot!