Titration of Amino Acids - pH, pKa1 and pKa2 - Isoelectric Point- Amino Acids (Part 4)

[@MedicosisPerfectionalis]

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[@MedicosisPerfectionalis]

I am so delighted to hear that! I hope you enjoy the rest of my Biochemistry playlist: kzbin.info/aero/PLYcLrRDaR8_dKo6Nu1Dw1efJGkDpuZGEy&si=COyGNznpVPedpf-I

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You’re very welcome 😊 If you want more biochemistry and biology videos, checkout their corresponding playlists on my channel!

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[@MedicosisPerfectionalis]

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Why does fully protonated amino is + charged, while the fully protonated carboxyl is not

[@Vodnuth]

Good question, because oxygen atoms prefer 2 bonds the deprotonated form of COOH has a negative charge associated indicating that one of the oxygens has electrons it wants to share. Whereas when the C-N2 is protonated the N atom has 4 bonds and nitrogen prefers to form 3 bonds, so the postive charge indicates that it is sharing more electrons than it usually likes to. Hope this helps.

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Glad it was helpful! Check out the rest of the Biochemistry playlist!

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How would you calculate the percentage of availability certain structure? For example, the percentage of structure B in a pH of 3?

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[@MedicosisPerfectionalis]

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[@Crackitwinit]

so we have memorize the pka values for all amino aicds right??

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Excellent😊

[@MedicosisPerfectionalis]

Thank you 🙏

[@nidafazal133]

Why is there greater change in ph at pI?

[@MedicosisPerfectionalis]

Nonlinearity of the system (it follows a logarithmic graph rather than a linear one). Thanks for your email:)

[@TomSun-ox9uq]

May I ask why when the pH equal to pKa, the titration curve becomes horizontal?

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keep going 👍

[@MedicosisPerfectionalis]

Thank you 🙏

[@FitHappyAndBlessed]

I do not see why you included this one as #40 in the General Chemistry playlist. It assumes that the prior three Titration videos have been seen for it to make sense. All the while Acids and bases have not been covered as yet. Acids and Bases are covered in #55, so the cart has gone before the horse. Given all that - it is still an awesome presentation.

[@MedicosisPerfectionalis]

Thank you for your feedback! I've re-ordered them! I appreciate you!

[@kayleemercado4449]

at what point in the figure is there no titrant being added at the pH points

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I love this❤‍🔥

[@MedicosisPerfectionalis]

Thank you 🙏

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Can you made a playlist for bio Olympiad because I prepare for ibo

[@MedicosisPerfectionalis]

I have more than 150 videos in my biochemistry playlist!

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Yo medicosis how do I find pI of tyrosine??

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Link of previous videos of amino acids please

[@MedicosisPerfectionalis]

You will find all of them here: kzbin.info/aero/PLYcLrRDaR8_dKo6Nu1Dw1efJGkDpuZGEy&si=feR1nKCVZ7R5okVa

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Thank you so much

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My pleasure 😇

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the freaking glutamic acid has rigged the system XD

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:)

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[@MedicosisPerfectionalis]

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Where are the other parts

[@MedicosisPerfectionalis]

Here: kzbin.info/aero/PLYcLrRDaR8_dKo6Nu1Dw1efJGkDpuZGEy&si=BCAYbVSZ2BKRWRl8

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Saved my life bruh, eeeeew

[@MedicosisPerfectionalis]

Thank you so much for watching!