Butane/Isobutane

Solution

B. Solve for NEW EQUILIBRIUM

- set up concentration table

[n-butane] [isobutane]

Initial 0.50 + 1.50 1.25

Change - x + x

Equilibrium 2.00 - x 1.25 + x

x = 1.07 M. At new equilibrium position,

[n-butane] = 0.93 M [isobutane] = 2.32 M.

Equilibrium has shifted toward isobutane.

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