Calculating equilibrium constants Keq

[Dave1212]

Homework Statement

2Fe(s) + 3Cl₂(g) ⇔ 2FeCl₃(s)[/B]
Keq = 53.25 [CL₂(g)] = ?M
Answer = [0.2658M]

Homework Equations

Keq = (cC)(dD)/(aA)(bB)

The Attempt at a Solution

Keq = [Cl₂]³

53.25 = (Cl₂)³

I’m confused because I feel like I need more to work with in this question. It seems like I need another number and I don’t know where to start on it.

Thanks in advance!

 

[Borek]

What are you trying to calculate? Thread subject says "calculating equilibrium constants" yet Keq is given.

 

[Dave1212]

What are you trying to calculate? Thread subject says "calculating equilibrium constants" yet Keq is given.

Trying to calculate the Moles for Cl₂

 

[Borek]

Not enough information. Can you quote entire question?

 

[mjc123]

You can't calculate "moles of Cl₂". You have two solids and a gas in equilibrium. At any temperature, there is an equilibrium pressure for the gas. That's all you know, unless you have a volume for the container, and can calculate the total amount of gas.