7. Activity and the Systematic Treatment of Equilibrium

Activity Coefficients

7. Activity and the Systematic Treatment of Equilibrium

# Activity Coefficients

** Activity coefficients **is factor used in describing the departure from ideal behavior for a reaction mixture.

Activity Coefficients

1

concept

## Activity Coefficient

5m

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2

example

## Activity Coefficient

1m

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3

example

## Activity Coefficient

1m

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Activity Coefficient Table

4

example

## Activity Coefficient Table

4m

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5

example

## Activity Coefficient Table Calculations 1

2m

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6

example

## Activity Coefficient Table Calculations 1

2m

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7

Problem

ProblemCalculate the activity coefficient of H** ^{+}** using the extended Debye-Huckel equation for a solution comprised of H

**and I**

^{+}**. Given that H**

^{–}**has a size of 9.00 x 10**

^{+}**m and the molar concentration of the solution is 0.075.**

^{-10}log γ = − 0.51 z ^{2} *√*µ / 1 + (α *√*µ / 305)

A

0.917

B

-0.0772

C

0.837

D

1.49

E

0.671

Interpolation: Non-ideal Ionic Strength

8

concept

## Non-Ideal Ionic Strength

59s

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9

example

## Non-Ideal Ionic Strength

3m

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10

Problem

ProblemFind the activity coefficient from the given ionic strength, µ, for the following ion.

F **–** when µ = 0.0080

A

0.8896

B

1.378

C

0.1040

D

0.9104