#henderson-hasselbalch equation
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Henderson-Hasselbach Equation Calculator
Henderson–Hasselbalch equation. In chemistry, the Henderson–Hasselbalch equation describes the derivation of pH as a measure of acidity (using pKa, the negative log of the acid dissociation constant) in biological and chemical systems. ... In these equations, A⁻ denotes the ionic form of the relevant acid.
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Henderson-Hasselbalch Equation (giving the relation between pKa and pH)
#pH#pKa#henderson-hasselbalch equation#pcm#pcb#jee#neet#desi academia#academia#chemistry#desi tag#high school
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Chemistry Notes (Sept. 2023)
Full Notes:
Henderson-Hasselbalch Equation Ex. 4
Proposed Lewis Structure Ex. 5
Red Blood Cell Disorders
Solution Equations
Steroids
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Note Cards:
Amphipathic Compounds
Characteristics of Helices
Dynamics of Enzyme-Catalyzed Reactions
Essential Amino Acids Mnemonic
Structure of Nucleosomes
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took this pic in study hall bc it made me happy
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Interview Tag
Rules: answer the questions and tag 20 blogs you are contractually obligated to know better!
Thanks love for tagging me @yutahoes
Name/Nickname: Melody, mel, ultimate yuta simp, ff main bitch because my life is more cliché than any fluff you’ve ever read
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idk who to tag so anyone who sees this can do it
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me when i found out that i had passed my AP chem test:
¯\_(ツ)_/¯
(งツ)ว
#i mean my problem was the memorization of the variations of equations#like i got 86% on the second acid-base equilibria unit test#(we had three acid-base units bc why not)#which is wild bc i kept calling the henderson-hasselbalch eq#the david hasselhoff equation#and had david hasselhoff's cover of hooked on a feeling on repeat in my head#for the whole fucking test#but feel free to hmu if you need help with smthn
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henderson-hasselbalch equation my beloved
#was studying for a chem mt and couldn't figure out a practice problem until it hit me#my only favorite equation from hs chem please forgive me for forgetting u .....#i spy an original post
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A Hodgepodge Of Clouds
FF.net I ao3
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“Tell me a story.”
It’s phrased like a demand but when Tony blinks down at the kid shamelessly tucked into his side he sees the faintest of question marks reflected in his deep brown eyes half hidden by dark, long eyelashes.
He can see the blue sky through some strands of his curly hair and a peak of red just above the top of his head and he feels his soul settle at the peaceful image.
“I don’t have a story to tell,” he gives back, albeit gently, and reaches out to chase away a pollen somersaulting through the mild evening air before it can settle on Peter’s face.
The boy scrunches up his nose indignantly at the hand so close to his face and almost goes cross-eyed trying to follow the sudden movement but never leans away. He doesn’t even flinch. If possible at all he leans closer, resting his head on Tony’s shoulder and angling it so he can look at the sky soaked in the softest of red.
Tony, on the other hand, keeps watching him and when he sees the sun set and the clouds fly past in his eyes he is certain that his boy holds the entire universe in his eyes. His universe at least.
“Everyone has a story to tell,” Peter retorts with a smile directed at nothing in particular and yet everything all at once. It’s the way he’s been ever since Tony has met him – smiling at the world, giving and shining and all Tony can do is hope that the world will smile back. “Just make one up.”
It sounds so easy when he says it, so confident and trusting and good.
But Tony is not the guy to make up kid- friendly bed time stories. Every story his mind has come up with so far has always ended in catastrophe. Every worst possible outcome will always come true in his head. His demons will always leak into his stories and he’s trying his hardest to keep them away from Peter – to keep the kid as sheltered as he possibly can even when he knows it’s futile with what he’s already seen.
Still, sometimes Peter’s optimism feels like the world has spared him from all the trauma Tony knows he’s gone through and he’s glad. He’s ridiculously glad that the kid can still get up every morning with hope in his eyes and love in his heart. He knows how hard it can be and it goes to show how much stronger Peter Parker is than he could have ever imagined.
With a small sigh he leans down and rests his cheek on top of Peter’s head. “I don’t have a very good imagination.”
“Liar,” Peter scoffs and the eye roll is evident in his tone, “Your imagination is unparalleled. It’s not like you’re leading R&D with someone else’s ideas. Or are you?” he asks mockingly shocked.
“It’s a different kind of imagination,” he argues halfheartedly, watching two shapeless clouds slowly morph together.
“Maybe,” Peter hums, “But it’s not really. And you have to be able to tell stories once you’re a dad, right?”
“I don’t think my newborn will care much about whatever it is I have to say. For all she cares I could be talking about the Henderson- Hasselbalch equation.”
It’s ridiculous but it makes Peter giggle and nestle into him more firmly with the movement so, in his books, he’s pretty sure he’s done something right. “Please don’t do that, Mister Stark. Since when do you talk chemistry anyway?”
“Since a certain someone,” he pokes his side, “Has started preparing his web fluids in my lab and I have to try to keep him from blowing it up.”
The joke is meant to distract and deflect but Peter, being Peter, doesn’t care much for Tony’s unwillingness to pad into new territory and simply ignores the jab. Instead he releases one of his hands from where they’re intertwined in his lap and points upwards, the borrowed hoodie sliding down just far enough to free his index finger but his thumb stays covered.
“Tell me what you see.”
“A hodgepodge of clouds.”
“That –“ Peter turns and forces Tony to lean back so he can meet his eyes, “Since when have you ever used the word hodgepodge.”
“It’s just a word, Pete.” He wraps an arm around his shoulder and pulls him back in, missing the way his curls were tickling his nose and his every word reverberating through his side just seconds ago.
“It’s really not but it’s also not a point.” He nestles back into his original position easily and nudges Tony, “Tell me a story about the hodgepodge of clouds.”
“Well,” he frowns and looks at the assortment of clouds ahead.
They’re illuminated bright red and the first thing that comes to mind is a fire – an inferno burning through the sky, flames leaking and stretching, unfurling their clutches to swallow his world whole. There’s grey clouds in front of it, like ashes of what used to be scattering around the place. The whole scene makes his blood run cold and his left hand itch. Instead of burying his fingernails into the ball of his hand he smooths out a wrinkle in Peter’s – well, his – hoodie.
“They used to be warm air and now they’re water. The Rayleigh scattering makes sure it looks creepily red and the wind moves the whole thing.”
“For a genius,” Peter starts, “You’re pretty dumb sometimes.”
“Oh, like you’re one to talk, Mister ‘I can totally drink while doing a one handed handstand and balance a Lego figure on my feet’.”
“In my defense, Darth Vader made me do it,” the kid has the audacity to giggle like the scream of him falling and landing on his Lego isn’t still echoing through his nightmares every once in a while. “Anyway, since you’re being a disaster I am going to tell you a story about those clouds.”
Before Tony can give some smartass retort, Peter has already untucked himself from his embrace and folds his legs crisscross in front of him, rocking back and forth on top of one of the tallest buildings in New York City.
Frankly, Tony hates it but he keeps quiet, instead reciting all the security precautions he has taken and why this specific kid could definitely not fall off this specific skyscraper.
“The clouds at the front are kind of all grey and dull and sad. Those are the people lacking imagination. Old people, cruel people. People stuck in the past.” Peter shoots him a pointed look but then goes back to focus on the sky instead, “They’re trying to keep everything the way it is, the status quo if you will, trying to hide the bright minds and the hope that’s marching on behind them.”
“But you see,” he smiles softly and plays with the sleeves of the dark blue hoodie, “Where the light is strongest, the grey is already starting to break and it’s obvious they won’t be able to hold them in much longer.”
“They scream love louder than the others can silence them. It’s the new generation marching up, demanding its rights and demanding change. It’s hope that’s spreading like a wildfire in their hearts and eventually it’s going to be stronger than the cold faceless mass of grey. It’s like a dawn of a new era where everything is light instead of darkness.”
“Maybe this is God’s way of showing us that our time will be soon and to keep being hopeful. Or maybe,” he shrugs almost bashfully,” it’s just a really beautiful hodgepodge of clouds.”
“Or maybe,” Tony weighs the words on his tongue, meeting the kid’s eyes and thanking whatever God or universe of fate it was that made them meet, “Maybe you are right and it’s hope. I like your story.”
“You do?”
“Well, except for the fact that apparently I’m part of the faceless grey mass that is trying to kill the hope. Yes, I did.”
Peter laughs, open and young and faithful, “Oh, you’re not. You just try to act like it sometimes but I think you’re one of the brightest lights and you’ll always fight for a better future, Mister Futurist.”
Without looking he leans back, trusting Tony to make sure he lands with his head in his lap and he curls into himself on the hard concrete like it is a mattress, cushioned only by the loose sweatshirt, facing the same direction again to keep watching the slowly moving clouds with a small yawn.
Tony joins him, fingers finding a spot just right behind Peter’s ear and falling into a familiar pattern of untangling his curls.
“Next story is on you, by the way.”
“I’ll try my very best.”
When he looks up again the grey clouds have parted and scattered and the red has turned into a hopeful yellowy-orange and he promises himself and the kid slowly drifting off to look at the world a little more like Peter does from now on.
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here’s the clouds I saw that forced me to sit down and write this (those are like phone pics taken by someone who’s got no clue what they’re doing, don’t judge):
#irondad#irondad fic#iron dad#iron dad fic#tony stark#peter parker#some cloud watching#fluff#story telling#josis fic#a hodgepodge of clouds#i also learned a new word today and im not sure im using it correctly but i also don't care much
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The least favorite professional eqn I can think of isn't H-H but Navier-Stokes, likely because it was so poorly explained atoi. That is was based on faulty assumptions but works OK enough doesn't make it better. NPSH too, but only for the first part.
THAT is a self-inflicted torture device if I ever saw one.
LUCKILY I am a biochemistry/molecular biology sciencer so evil physics equations stay far away from me where they belong and I don’t have to do much with Henderson or Hasselbalch anymore :P
I can’t seem to get away from enzyme kinetics to save my life, though. Can’t win them all, I guess.
#who are you lol#but yeah i am pleased with the current level of awful math in my working life#leo the sciencer#anon the also sciencer
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Henderson-Hasselbalch Equation Calculator
In 1908, Lawrence Joseph Henderson derived an equation to calculate the pH of a buffer solution. In 1917, Karl Albert Hasselbalch re-expressed that formula in logarithmic terms, resulting in the Henderson–Hasselbalch equation. In chemistry, the Henderson–Hasselbalch equation describes the derivation of pH as a measure of acidity in biological and chemical systems. To determine normal pH value based Henderson-Hasselbalch Equation Check our Medical Calculator https://www.pediatriconcall.com/calculators/henderson-hasselbach-equation-calculator
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My eyes are going cross eyed looking at acid/base ratios and determining whether the pH is less than or greater than the pKa. I know this, I do. But I’m overthinking it to the point I’m driving myself crazy.
It’s logarithmic math that I’ve known how to do since I was in middle school, and yet one sentence in my book is tripping me up as I’m reviewing the Henderson-Hasselbalch equation.
(Fun fact, I learned this equation many years ago in differential equations for the biological sciences, three years before I utilized it for my first class in biochem.)
Anyway. Any tips on not letting the words get to my head and betraying what I know is true? (Overthinking the simple math.)
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The solubility of dimer acids increases with increasing carbon chain length and melting point, making them weak dibasic acids. The pKa of dicarboxylic acids tends to values of 4.5–5.5 as the separation of the carboxylate groups increases. The Henderson-Hasselbalch equation states that they are neutral, and this is confirmed by the presence of hydrogen ions in their urine. Read more @ https://medium.com/@sharvaricmi/dimer-acid-is-a-highly-viscous-dicarboxylic-liquid-that-is-obtained-from-tall-oil-for-industrial-5c95514e81f2
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Buffers | Dissociation constant | Henderson Hasselbalch equation | Phys...
Strong acids and bases dissociate almost completely in an aqueous solution into respective ions and hence add H+ ion and hydroxyl ions into solution causing a change in pH.
Buffer is any substance which binds H+ ions reversibly and prevents the change in pH in case there is addition of acids or bases into a solution. Weak acids which do not completely ionise when dissolved in water behave as buffers. Fundamentally the weak acid acts as proton donor and its conjugate base acts as a proton acceptor.
Now when can be a buffer most effective and how one buffer differs from other buffers ?
A buffer will be most effective for handling changes in pH on either side when the proton acceptor and the proton donor are in equal concentrations. . This depends on the dissociation characteristics of any acid i.e its tendency to release hydrogen ions into a solution. The dissociation characteristic of the acids is studied using equilibrium constant or dissociation constant. Dissociation constant is equal to the dissociated ions i.e H+ ions and its conjugate base divided by the concentration of the undissociated acid in the solution. This dissociation constant can be expressed as negative logarithm. Its called pKa. Since its negative logarithm, pKa will be larger for weaker acids.
But how this dissociation constants helps us in understanding the characteristics of the buffer and when they are most effective ?
That is better understood with Henderson Hasselbach equation such that we are solving dissocitaion constant equation for H+.
pKa + log [A-] / [HA] = pH
Buffer is most effective for handling changes in pH on either side when the proton acceptor and the proton donor are in equal concentrations. When they are in equal concentration, pKa = pH. So at a pH which is equal to pKa of the buffer, the dissociation is such that the concentrations of proton donor and proton acceptor are equal..so at this pH…the buffer is most effective in either directions…
Physiological buffers
HCO3- buffer system:
pKa of this buffer is 6.i, so at pH 6.1 this buffer will exist equally in dissociated and undissociated form and will be most effective on both sides. But our body pH is 7.38 - 7.42 so that means at this pH which is higher than pKa , it will exist more in dissociated form. Well that’s good for us since bicarbonate ions will be available to bind to acids.
Phosphate buffer.
Its dissociation constant is 6.86. It also stays mostly in dissociated form and is more effective for capturing acids.
Ammonia buffer
pKa of ammonia buffer is 9.25….…this ammonia buffer system mostly exists as undissociated form i.e as ammonium ion…so actually it will not be able to bind with much hydrogen ions..so actually its a very poor buffer per se…however…the production of ammonium ion by the metabolism of glutamine also produces one bicarbonate which is added back into the blood…also in medullary inerstitium…this ammonium buffer exists in equilibrium with ammonia and ammonia diffuses from their into the collecting duct..where it binds with secreted hydrogen ions…..Not only that, it is one buffer whose production is regulated by kidneys….i.e its production increases in acidosis.
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I'm currently a semester into doing a Bachelor of Technology and we've just done a lesson on the Henderson-Hasselbalch equation. How do you recover when you've been completely mondfucked by something?
you forget it. i mean, remember it long enough for the test, but then
like i’ve learned that approximately 10 times and with a background in chem and pharm so when i go to make a buffer solution in our musty old bio lab from our hodge podge of solutions and want to figure out how to get a buffer at the right pH with math you’d think i’d just whip old good ole H-H but i do not fucking remember that shit
enjoy H-H. Michaelis-Menten is even better imo.
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