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Function of concentration

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Reference no: EM131430075

Determination of the equilibrium constant for the iodine + iodide →triiodide reaction as a function of concentration. Calculate the concentrations of iodine ([I2 ]0) and iodide ([I-]0) that would result from the dilutions if a reaction did not occur. Using the absorption measurement for triiodide (A) and its extinction coefficient, calculate the triiodide concentration ([I3-]) that results from achievement of equilibrium, them calculate the final concentrations of iodine ([I2]) and iodide ([I-]) bysubtraction. Finally, calculate the value of the equilibrium constant (Keq).

v (I2)

V (KI)

V (h2o)

[I2] M

[I-] M

A

T (celcius)

I3 M

I2 M

I- M

2

1

1

.505

23.3


1

2

1

.321

23.5


1

1

2

.249

22.2


3

1

0

.682

22.4


1

3

0

.322

21.9


Reference no: EM131430075

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