When to use the Henderson-Hasselbalch Equation

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004624886
Posts: 25
Joined: Fri Sep 25, 2015 3:00 am

When to use the Henderson-Hasselbalch Equation

Postby 004624886 » Sun Dec 06, 2015 10:41 am

Can I use the Henderson-Hasselbalch equation when I have a weak acid that is being titrated by a strong base, but not all the way to the stoichiometric point? I guess my real question would be, is the HH equation valid when the volume (and thus molarity) of a system is changing (if I were to calculate the molarities of the weak acid and its conjugate base after the addition of the titrant), or does it only apply to systems with unchanging volume where the added strong base is a salt dissolved in the solution?

Chem_Mod
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Re: When to use the Henderson-Hasselbalch Equation

Postby Chem_Mod » Sun Dec 06, 2015 11:02 am

Yes, you can use it in this situation. Be careful when determining your concentrations of the conjugate acid/base pair.

Martha Xuncax 3G
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Joined: Wed Sep 21, 2016 2:56 pm

Re: When to use the Henderson-Hasselbalch Equation

Postby Martha Xuncax 3G » Fri Dec 02, 2016 8:37 pm

So we will have the option of using the Henderson-Hasselbalch equation or the ice box on the final?

juliaschreib1A
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Joined: Fri Sep 29, 2017 7:06 am

Re: When to use the Henderson-Hasselbalch Equation

Postby juliaschreib1A » Sun Jun 03, 2018 11:44 pm

This equation is used for estimating the pH of a buffer solution.

Mariah Guerrero 1J
Posts: 32
Joined: Fri Apr 06, 2018 11:03 am

Re: When to use the Henderson-Hasselbalch Equation

Postby Mariah Guerrero 1J » Sun Jun 03, 2018 11:46 pm

Will we have to know this equation for the final? We haven't learned about it in lecture yet, right?


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