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Chemical equilibrium problem

I am enclosing a problem is causing me some doubt. As you will read from the problem wording, It seems that the value should be 0.3 mole as well. However, it is not within the options.

(See attached file for full problem description)

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When 2.0 mol of carbon disulfide and 4.0 mol of chlorine are placed in a 1.0 Liter flask and the system allowed to come to equilibrium, the flask is found to contain 0.3 moles of CCl4. How much CCl4 is present at equilibrium?

CS2(g) + 3 Cl2(g) S2Cl2(g) + CCl4(g)

Options

a) 3.7 moles
b) 3.1 moles
c) 1.7 moles
d) 1.2 moles
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When 2.0 mol of carbon disulfide and 4.0 mol of chlorine are placed in a 1.0 Liter flask and the system allowed to come to equilibrium, the flask is found to contain 0.3 moles of CCl4. How much ...

Solution Summary

Explanation provided to solve problem related to chemical equilibrium in a very simple and step wise way.

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