Tony Khan: "It’s false equivalence, Will. They try to move the line with ridiculous points aiming to dispute the credibility of something credible. Adam Cole is over af, he’s pushed & has many more young fans watching him than he did on Tuesdays. Would we argue if they said water wasn’t wet?" mobile.twitter.com/TonyKh…
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πŸ‘€︎ u/DeluhiX
πŸ“…︎ Nov 29 2021
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Ph curves- how do I know what volume to do the equivalence point at ? Why is it 40cm3 here ? I don’t understand
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πŸ‘€︎ u/vape_love
πŸ“…︎ Jan 06 2022
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I’m an undergrad student who hasn’t stepped foot in a lab in 1.5 years due to COVID. This is me hitting the equivalence point of a titration using phenolphthalein, and it’s the first titration I’ve ever done completely unassisted. It’s not much, but I’m super proud. v.redd.it/mzifo54fl2e71
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πŸ‘€︎ u/gopackdavis2
πŸ“…︎ Jul 29 2021
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Never posted here before, but after seeing this I couldn't help it. Conservatives really need to take a class on false equivalence at this point.
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πŸ‘€︎ u/TickTurn
πŸ“…︎ Aug 25 2021
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"It’s false equivalence, Will. They try to move the line with ridiculous points aiming to dispute the credibility of something credible. Adam Cole is over af, he’s pushed & has many more young fans watching him than he did on Tuesdays. Would we argue if they said water wasn’t wet?" imgur.com/a/KA7u3UV
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πŸ‘€︎ u/ironfly187
πŸ“…︎ Nov 30 2021
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Three titrations at school seemed like alot at the time, now it's 30 at work... these are all at the equivalence point, then pushed back with a drop or two of sulfuric acid v.redd.it/t9vvpheubq771
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πŸ‘€︎ u/dewan_art
πŸ“…︎ Jun 27 2021
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Is half equivalence point equivalence point/2?

I usually ask annoyingly hard questions but this is although is simple it's kind of confusing. This question isn't something for an exam or a lab just as a concept for myself.

While titrating I can make a plot of pH vs added titrant which I can find the equivalence point easily (or using color changes due to phenolphthalein indicator) but to find the half equivalence point we needed to plot the first derivative graph to find peaks (one major and one minor which are the equivalence and half equivalence points respectively). so why do all of that if you can just take equivalence point divided by two? Also, the half equivalence point determined through the first derivative graph is different than the one determined through equivelance/2 which is also different than the one determined through color changes in titration! which is correct?

Thanks!

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πŸ‘€︎ u/om799ar
πŸ“…︎ Dec 21 2021
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[Chemistry] need help for the top one. I googled How to get the equivalence point but it said that pH levels were required to make a graph. However we did not measure the pH levels.
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πŸ‘€︎ u/MetroCardKo
πŸ“…︎ Sep 08 2021
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What is the point in knowing if an relation is equivalence or not?

As the title says, what is the significance of equivalence relations.

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πŸ‘€︎ u/impossiblePie287
πŸ“…︎ Jun 18 2021
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Did i hear a better match than ch0des and false equivalences? Brownie points if you check the comments np.reddit.com/r/Chodi/com…
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πŸ‘€︎ u/iwantsomehugs
πŸ“…︎ Feb 15 2021
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Explain like I'm 5...equivalence points mean there are equal equivalents of acids and bases in the solution. BUT titrating a weak acid with a strong base ends up with a slightly basic solution...how does that make sense? Any help appreciated I am really struggling with titrations.
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πŸ‘€︎ u/countess_luann
πŸ“…︎ May 10 2021
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why does moles of acid equal to the moles of base at equivalence point

I am confused as to why does moles of acid equal to the moles of base at equivalence point. Since all the acid has been neutralized at equivalence point, wouldn't there be no more HA left, so the moles of HA (acid) would be zero??

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πŸ“…︎ Feb 04 2021
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Using normality vs molarity at the equivalence point?
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πŸ“…︎ Jun 23 2020
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Does anyone know why this happens? My teacher said it had something to do with the equivalence point. It is a backwards tritation with potassium permangate v.redd.it/kvgtss7we9l41
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πŸ‘€︎ u/Lorenboy2001
πŸ“…︎ Mar 07 2020
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A First-Amendment Case for Freedom from the Woke Religion | The latest installment from James Lindsay mapping Critical Social Theory as an equivalence to traditional Theistic religion. | ALSO, A REQUEST: Does anyone have a Steelman of Critical Theory they can point me to? newdiscourses.com/2020/09…
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πŸ‘€︎ u/great_waldini
πŸ“…︎ Sep 10 2020
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A level ph graphs . I don’t get how the first graph the equivalence point is at 12.5. For the second one , why is the graph the opposite of 1? When it is also a strong acid strong base
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πŸ‘€︎ u/Additional_Round
πŸ“…︎ Dec 23 2020
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Does time travel violate the mass-energy equivalence principle by adding additional mass at a point in time in the universe?

Does time travel violate the mass-energy equivalence principle by adding additional mass at a point in time in the universe? I mean like, if I meet my former self, there'd be two selfs each with 175 pounds of weight or 80 kilos of mass, whereas before there was only one.

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πŸ‘€︎ u/yoliveras
πŸ“…︎ Oct 27 2020
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My brothers(twins) are in 6th year(Irish equivalence if seniors) and for their quotes they are putting β€œbread” and β€œno bread”. One is celiac. The boys at work tell them apart that way. They see them and point and say β€œbread?”
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πŸ‘€︎ u/ben--dover123
πŸ“…︎ Jan 04 2020
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Polyprotic acid equivalence points.

Can someone explain to me the relationship of the polyprotic acid equivalence points?

I thought at equivalence points, the moles of base added equals to the moles of acid consumed. So why are the picture using molarity instead of moles?

https://preview.redd.it/8cbuwt4ezbh61.png?width=1210&format=png&auto=webp&s=a8386cd40a022519e59df05e61e53db9e68fbb6c

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πŸ“…︎ Feb 13 2021
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Is the equivalence point same as equilibrium?

Writing a report on the Ksp of KNO3 and just wanted to know if the equivalence points denotes a state of equilibrium being reached.

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πŸ‘€︎ u/lilmissmilk
πŸ“…︎ Dec 07 2020
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Is equivalence point when the concentrations of the acid and base are the same or when when pH is neutral? What about the titration curves for polyprotic acids with multiple equivalence points? (Studying for MCAT)
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πŸ‘€︎ u/snakejob
πŸ“…︎ Sep 02 2020
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Does anyone know what causes the rapid change in pH near the equivalence point and what causes the graph to plateau towards pH 10? I know it’s something to do with it being a logarithmic scale but I’m not to clear about it. Thanks in advance.
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πŸ‘€︎ u/Brocolee517
πŸ“…︎ Jun 01 2020
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Is the equivalence point the point where M1V1=M2V2? Always struggled with acid/base chem, any tips would be nice!

For my entire chemistry career starting from high school through 3 years of undergrad, I have not been able to get a firm grasp of acid/base chem.

To determine what volume of base to add to an acid in a titration problem, can we simply use M1V1=M2V2? Or is this only if we have monoprotic and monobasic species (i.e., HF and NaOH). Would this not work with, say, H3PO4 and NaOH?

Also, if anyone has any tips on resources that helped them solidify acid/base chem, I'd appreciate that!

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πŸ‘€︎ u/PillowNinja99
πŸ“…︎ Aug 20 2020
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Why is the second equivalence point in the titration of a diprotic acid indicative of the following OH- concentration?

Came across a Uearth problem that says that in a diprotic acid, where

H2A + OH- <-> HA- + H2O HA- + OH- <-> A^2- + H2O

It says that the second equivalence point is [A^2-]= 0.5[OH-]

Why is there a 0.5 before the OH here? Shouldn't it just be conjugate base= the [OH-]?

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πŸ‘€︎ u/professionalmed
πŸ“…︎ Aug 22 2020
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(high school) Why does [HA] = [A-] at the half-equivalence point?

I've searched for like an hour online, and I couldn't find any answers...

From what I'm understanding, half-equivalence point is when half of the analyte (let's say HA) is neutralized. I'm not sure why halving the amount of HA would make it so that the concentration of HA = concentration of its conjugate base A-. Could someone break down the reasoning for me?

I mean, would the concentration of HA even be two times the concentration of A- in the first place?? One molecule of HA forms one A-, right? I'm sure I'm not understanding this correctly, bc none of this seems right...

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πŸ‘€︎ u/hyperiondaylily
πŸ“…︎ Jun 02 2020
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[College Level: Inorganic Chemistry] Using Molecular Mass, Volume of Base, Measured pH at Equivalence Point, and Mass of Acid to calculate the Ka for the monoprotic acid. I need any tips or suggestions you can give me as I'm stuck without lectures, please help me if you can.
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πŸ‘€︎ u/MerboKermam
πŸ“…︎ Mar 30 2020
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Equivalence Point

Could someone explain when to use the equivalence point equation: NaVa = NbVb?

Kaplan has a question for a neutralization reaction and asked "How many liters of 2 M Ba(OH)2 are needed to titrate a 4 L solution of 6 M H3PO4?". I incorrectly used dilution equation M1V1= M2V2.

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πŸ‘€︎ u/userxyz7
πŸ“…︎ Jun 23 2020
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Isoelectric points vs. equivalence points

When looking at a titration graph, does the isoelectric point always occur at the first equivalence point?

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πŸ‘€︎ u/vanilla_stars
πŸ“…︎ Dec 08 2020
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