Water as a solvent | Water, acids, and bases | Biology

Water as a solvent | Water, acids, and bases | Biology | Khan Academy

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9 жыл бұрын

Water as a solvent. Polar solutes. Hydrophilic and hydrophobic substances.
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Пікірлер: 28

@tamicross1916 2 жыл бұрын

Great job! This was far more helpful than my instructor was.

@thewhitecrow61 2 жыл бұрын

i just want you to know that you have helped me a great deal over the year to understanding this better, ... Thank you

@christinatheocharidou3830 8 жыл бұрын

this really helped me thank you so so much

@who5563 3 жыл бұрын

Cool!

@bestofallscience546 2 ай бұрын

Why doesn't the hydrogen atoms on hexane get attractive by the negative charge of oxygen?

@sophie-bellecarnell604 6 жыл бұрын

Thank you so much, this has really helped me understand the topic!

@SandowSamira 3 ай бұрын

❤

@datrebilmodeerf8146 3 жыл бұрын

I think the video doesn't really explain why water is a good solvent.

@AbuWalter 2 жыл бұрын

its a good solvent because of its polarity and because the hydrogen bonds are able to be flexable and bond

@mango5509 2 жыл бұрын

… ok bro idk how six people saw this and agreed with you, you are either joking or have ADHD, because he says it at the beginning of the vid lol. Literally stated that “what makes water such a good solvent is it’s polarity” as he goes on to literally explain how hydrogen bonds work. I know I’m 11 months late and you’ve probably already finished biology/chemistry but still gotta reply lol

@datrebilmodeerf8146 2 жыл бұрын

@@mango5509 I meant that the video does not explain why Na+ and Cl- "prefer" dissolves in water instead of keeping together. Nonetheless, the explanation is accurate and good. Maybe my commentary was imprecise and exaggerated.

@hahahaha7465 2 жыл бұрын

Bruh nice

@JustinKoenigSilica 9 жыл бұрын

Thanks Salman!

@JustinKoenigSilica 9 жыл бұрын

Justin Koenig will you be talking about surfactants?

@makhanlalkar3111 6 жыл бұрын

Thanks!! You are the best!!!

@jollyjokress3852 8 жыл бұрын

What is the rule of what kind of atoms like to bond? Why do the H and Na Atoms bond over the NaCl once it is in the water? Something with the elctronegativity, but it's kinda confusing because if the Na and the H like to bond, because they have higher attraction then ergo the cl and the other atom of the water must have a very low attraction but still bond because the others are taken!? does anyone know?

@datrebilmodeerf8146 3 жыл бұрын

H and Na don´t bond each other. They are both positive.

@datrebilmodeerf8146 3 жыл бұрын

You're welcome!

@jollyjokress3852 3 жыл бұрын

@@datrebilmodeerf8146 I deleted it, yet thanks ;) So, yes Na+ and H+ obviously don't bond. I didn't pay attention. Oxygen is more electronegative than chlorine (I looked it up) so the O2- is a good attractor. But one could argue that Cl- (perhaps) would be more electronegative when oxygen has one H+ bonded. I think that - because oxygen has a full octett of valence-electrons when the H+es are bonded (vice versa the H+es have filled outer shells) - it would be too hard for the Cl- to detach them ;)