pH and Buffers

069 - pH and Buffers
In this video Paul Andersen explains how buffer solutions maintain pH in a solution. A buffer solution is made up of a weak acid and its conjugate base. As strong acids or bases are added the pH remains stable. A good buffer solution has a pKa value equivalent to the pH and equal amounts of the weak acid and the conjugate base.
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[@RedInk102]

6 hours of studying this chapter and two two hour lectures. didn't get it. One KZbin video later and it makes perfect sense

[@vikas1933]

can anyone please explain me this sentence . in metabolic acidosis , one mechanism is incresed acid buffer excretion--- ph changes rapidly with relatively small change in H concentration , limiting the amount of acid that can be secreted as free H in the urine

[@DaeguRay]

your body has to produce more buffer if the amount of acid secretion is increased

[@Problemsolved222]

Literally same...

[@mmmr856]

story of my life

[@electro_yellow9295]

You're only able to understand the video because of the studying you did. You just needed someone to put it in an understandable language.

[@robertperez9889]

subscribed, we need more teachers like you. it takes talent to teach someone something new, professors dont realize it but just because you have a phd in something doesnt mean you can teach it to others. keep up the good work

[@adamleach7860]

Video 69. I'm feeling some chemistry here...

[@hamedhosseini4938]

+Adam Leach HAAAAAAAAA

[@barta5ot-395]

i was just going to comment the same thing. G fucking G

[@retinaz2220]

Nice

[@Dratini__]

@@retinaz2220 nice

[@thewolfgang2963]

Adam Leach holy crap that was 4 years ago

[@TheGirlsfrommars]

You taught a 30+ year career geophysicist more in an hour than I learned in college. Hats off.

[@Moonchild98]

From undergrad, to my masters, I keep coming back to this video. You're godsent

[@VAMWSZ]

It's amazing how the videos I need come out exactly as my professor begins lecturing on it. The timing couldn't have been any better.

[@organic_angel]

You sir deserve a round of applause for this video. Thank you.

[@Nihadhawan]

Your voice is so good.. understood everything so clearly

[@nexonlikesmoney]

U r a much better presenter than mr khan how u utilize visual devices and showing ur face that actually makes us think u r talking to us. You are our life savior for ap sciences

[@comicbest2662]

but mr khan teaches more intuitively

[@laeb08]

I'm learning a whole lot on KZbin, unlike in class where my professor doesn't even understand what he/she is even talking about; just reads directly from textbooks without any rationalizing

[@MsBenStahl]

Love your videos. Could you show a video that explains acidity in the body. Maybe show the flow to keep balance after drinking soda?

[@abdullahmedicalstore7762]

Really helpful! Frm my childhood I found these theses topics cause of my head ache.. Bt now I really feeling I should learn more its too much easy.. 😍Thanku

[@spintius3752]

You are really good at explaining. Thank you.

[@alikiandroutsosantico3268]

Thanks a lot, that's just what I needed!! Love your videos :)

[@gorgeousgirl7166]

Thank you sooo much ....spent an entire day trying to figure it out my self and couldn't bt there you r, in just 5 min ..thank you .

[@alfredodelgadillo347]

thank you so much, these lessons are life saving!!!

[@user-xq2mv2sg2h]

Thank you very much , you can't imagine how that was helpful !

[@1935ofGranalaia]

another great job mr. andersen

[@siabf96]

@Cristopher Ray Over there you have a weak acid and its salt. Notice how it's the same thing as having a weak acid and its conjugate base. It's like having H2CO3 and HCO3- (beacuse NaHCO3 ionizes into Na+ and HCO3-)

[@maysoonalghaslan4639]

Thank you so much. You are the best. I wish I can like this video ten thousand times!

[@billw.5397]

thank you for saving me during chem and bio. cheers.

[@R00567]

Awesome videos :-D I'm studying for the mcat and your videos help a lot conceptualizing certain topics :-) god bless

[@arbrikopliku6736]

How did you do on the mcat?

[@Kugelblitz000]

How did you do on the mcat?

[@sinedmeth4781]

yes that was very helpful Mr Anderson. U D MAN

[@aamirjankhan8642]

Very informative, understood a lot.

[@diegoamores9295]

I just got kicked out of my chemistry class because I forgot my handout, I’m glad this makes more sense than the class

[@russell2185]

Awesome Video. Succinct and straight forward.

[@kamendimitri5624]

Ty so much for these videos!

[@kmlljk]

still don't understand XD. Maybe you can add definations of pKa or other words every now and then. It will help greatly :)

[@makusudi1]

Awesome video!

[@Desiparth]

Smh this is better than khan academy

[@SunSunSunn]

no

[@jon-paulplacencio775]

Parth Shorey what is smh?

[@Legit375]

@@jon-paulplacencio775 Shake my head

[@danialraza9795]

@@jon-paulplacencio775 Smiling much happier

[@yesnt8907]

@@jon-paulplacencio775 Shops must halt

[@joanangelina]

Thankyou so much you are the best!!!😭😭

[@adelhajhasan3093]

great explanation

[@prosentinel8767]

Amazing vids!

[@michaelhumphrey8628]

Great vid. Thank you.

[@quantum_psi]

Very nice one Mr Anderson :-)

[@curtpiazza1688]

Well explained!

[@ahmadsaqibqaeym1684]

Too helpful 🙂. Thanks 🙏🏻

[@Batman-ws9lb]

Very good video. 10/10 would recommend to fellow students

[@saranour473]

very helpfull .....thank you so much

[@echelontimepieces22]

This is just what I needed

[@SuzanneKnop]

haha Mr. Andersen like from matrix (took me 3 videos to finally realize why that name sounded familiar) also THANK YOU SO MUCH these are great

[@Idalb0e]

Very nice video

[@learntosing5397]

best video ever,nice!

[@learntosing5397]

so nice comment man,shiiiiit

[@kripashankarshukla4073]

I wish I could like this video to infinity

[@yushuagreen5546]

really really very useful, but :( you speak very fast!!!! thanks a lot

[@OliverJoshuaJacob]

Thank you . this was very helpful. What software so you use to make your videos?

[@ae7100]

Mr Andersen, hi. I have a question regarding the shift of equilibrium at 2:19. Why adding hydroxide ions will cause the equilibrium shift to the right? Thanks.

[@avrohomhousman5958]

I was wondering that too. I think its because the hydroxides bind to the H+ ions (on the products side of the reaction) and form water. This removes some of the H+ products so the reaction shifts right to create more of them.

[@AA-cp6vq]

Best teacher in the world 💙💙

[@kiaragil543]

thank you!!! I finally get its... its video is very usefulll :)

[@joelpinhoneto5225]

Amazing!

[@coleeoo3740]

My bio teacher never has a lesson plan so you’ve basically thought me every thing I know

[@ScientistRenzo]

great vid

[@bissxiaochuan3342]

really help a lot！

[@iliriacum666]

Thank you...nice one

[@neverbackdown1918]

Nice video

[@christopherray4544]

I was under the impression that to create a buffer, you need both the acid and a salt of the acid? So, for example, a solution of H2CO3 mixed with NaHCO3. Could you explain?

[@wlo23ex81]

does OH+H2CO3->H2O+HCO3? 0:51 How does it push hydroxide ions to the right if it's not the same equation?

[@rhiannn3416]

this is super super late and you probably either know this already or your test is long gone, but adding a base to an acid will make water and a salt. ie, the hyroxide ions from the base and the hydrogen ions from an acid will combine to form water: OH- + H+ -> H2O Therefore H+ Ions are consumed and equilibrium shifts to the right to replenish loss of H+. Hope this helps!

[@michellek.7833]

WAY FUCKING HELPFULL! I LOVE YOU, MAN!! YOU'RE THE BEST!!!

[@poliax7066]

Thanks!!!

[@arjunmohandas5552]

good one !!

[@yumenoritsu]

Thank u!! :D

[@SuperTizzy09]

good stuff

[@thechibyweeby922]

Please help me know, if there is any effect on the buffer of blood if small amount of acid or base is added in it ?!

[@pri7974]

Thank you!! :)

[@ranaaydn8989]

thank you sir

[@aymankhatib297]

at 3:18 he says that the [H+] is the pH. Isn't the pH -log of [H+] and not just the hydronium concentration?

[@jamesgates]

nice

[@Phillips1758]

Have you got any vidoe on Diabities

[@reaper4812]

Nice.

[@eiklinoh9402]

amazing

[@ZerinaPL]

The correct way to take the negative logarithm of each side, and we get pH = pKa + log [A-]/[HA]

[@roshnijagadeesan5686]

But I wish I could like it 10,000,000 times

[@natepedigo8470]

Nice

[@nativechatter999]

Nitpick: Your seesaw diagram is incorrect. The "more acid" and "more base" should be swapped, because if base increases, pH should increase, and if acid increases, pH should decrease. Your diagram implies that more acid will increase pH and more base will decrease pH, which is incorrect.

[@professorm4171]

So is HCO3 a conjugate base in the H2CO3 H + HCO3 ?

[@i_like_to_move_it_move_it]

Mr Anderson... this is Mr Smith, I want to have a word with you

[@syafiqanorhaidi7584]

helpful!

[@ONLYuseMEgunsOFWALL]

What happens if you add water to a buffer?

[@monty583]

why does adding protons push it to the left? the H2CO3 cant accept more protons?

[@martynvarley9984]

Chemical equilibria always resist the change in a reaction. It's Le Chatelier's principle- look it up! it's integral to all chemistry. Think why would more product form when its reactant concentration increases? it acts to reverse the change by forming product and using up reactant

[@Mm-yk5mm]

thank u 😊😊😊

[@lovebug8627]

Hi. I'm putting a request for tissue and membranes video.. Thank you :)

[@siddharths8218]

nice.

[@Jessiemats]

Thanks

[@user-hy6xw4zi5k]

thanks

[@karou_jee]

how long does it take for buffer control of blood pH

[@sushilsonam88]

you are improving my grades

[@tinashemuza8671]

why dilute aqueous ammonia alone will not act as a buffer solution.

[@esa2236]

can someone give me a reason why a scientist would want to use a buffer in his/her experiment? I understand how it works, but I don't know why they would need to do it. Also, why wouldn't it work if it was a strong acid and a weak base?

[@ahmeddawood6791]

buffers can be used to maintain blood ph for injectables because change in the ph of blood can cause denaturation and hyper/hypo acidosis in blood and they can also be used as a natural defense of freshwater against acid rain

[@deepanshukumar6190]

Can you please explain Common ion effect. It's a humble request. please. :)

[@esa2236]

What I don't understand is how the solution is more acidic if the concentration of the H ions are less than concentration equilibrium. Shouldn't it be the other way around????? I thought it should be more basic because the concentration of H is less so OH should be favorable. I'm referring to 4:30

[@roshnijagadeesan5686]

Same.

[@vikkiedonar3176]

thanku sir

[@anilsinha4968]

1:41 that is what lacks in science and mathematics education in India. Its more about equations and definitions and exam patterns here.

[@oviyanaresh5775]

so that's why H and OH =H2O (water) is good to maintain body's pH

[@MukeshMathematics]

♥️

[@cody4077]

First time Bozeman didn't work for me :( Onto the next xD

[@taylorkamann21]

Can you do aTOEFL video???

[@emilius_525]

What does the A stand for in HAH+ + A-?

[@miraaisha7080]

it is a conjugate base

[@michaelward3170]

What exactly is the conjugate base?

[@kripashankarshukla4073]

When an acid looses H+ ion, an anion is formed which wants to take H+ ion or proton. So, according to the Bronsted Lowry concept, it will be considered as a base. The stronger the acid, the weaker is the conjugate and vice-versa

[@agent008chico]

Ha' Ha'! Min 1:00 Caught you saying "protein" instead of "proton"! The you said proton. Busted!

[@CariBaez]

+agent008chico ok?

[@agent008chico]

+Faith :3 Just having a little fun Miss Faith! Non raunchy silly fun!

[@CariBaez]

agent008chico I know, I love the name of faith, even tho isn't my name. My real name means love with being generous._.

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+Faith :3 Hasani?

[@CariBaez]

What