# chemistry

If 0.50 mol of iodine and 0.50 mols of chlorine are initially placed into a 2.00-L reaction vessel at 25 Degrees Celsius, find the concentrations of all entities at equilibrium.

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1. I2 + Cl2 ==> 2ICl (Is that the equation?)

initially:
(I2) = 0.5/2.0 = ??
(Cl2) = 0.5/2.0 = ??
(ICl)= 0

change:
(ICl) = +2x
(I2) = -x
(Cl2) = -x

equilibrium:
(ICl) = 0 + 2x = 2x
(I2) = (0.5/2.0) - x = 0.25 - x
(Cl2) = (0.5/2.0) - x = 0.25 - x

Set up Keq, substitute, and solve for x. Post your work if you get stuck. Check my work.

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posted by DrBob222
2. Keq = [0.25 - x] / [0.25 - x][2x]

= [0.25 - ] / [0.25 - ][2()]

=

What numbers need to be substituted?

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posted by Claus

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