Extended debye-huckle equation

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Jul 24, 2020, 6:28:07 PM

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May 17, 2016, 11:58:40 PM

\log γ = \frac{- 0.51 z^{2} μ^{\frac{1}{2}}}{1 + \frac{α μ^{\frac{1}{2}}}{305}}

$loggamma = (-0.51z^2mu^(1/2))/(1+(alphamu^(1/2))/305)$

(μ) Ionic Strength

$(mu)" Ionic Strength"$

(z) Charge of ions

$(z)"Charge of ions"$

(α) Size of ions

$(alpha)"Size of ions"$

Description

The extended debye-huckle equation is

$\log γ = \frac{- 0.51 z^{2} μ^{\frac{1}{2}}}{1 + \frac{α μ^{\frac{1}{2}}}{305}}$ $loggamma = (-0.51z^2mu^(1/2))/(1+(alphamu^(1/2))/305)$

where

loggamma is the activity coefficient
z is the charge of the ions.
mu is the ionic strengthof the salt in units of (mol/L)
gamma is the activity coefficient.
alpha is the ionic radii in units of (pm), a full list of ionic radii can be found here.

* The above equation is already solved for gamma.

Harris, 9th Edition. Pp.165

This equation, Extended debye-huckle equation, is used in 1 page

• Analytical Chemistry Collection by Dasha

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