At a particular temperature, a 3.0 –L flask contains 2.4 mol Cl2,
1.0 mol NOCl, and 4.5 x 10-3 mol NO. Calculate K at this
temperature for the following reaction:
2NOCl (g) ↔ 2NO (g) + Cl2 (g)

Question

At a particular temperature, a 3.0 –L flask contains 2.4 mol Cl2,
1.0 mol NOCl, and 4.5 x 10-3 mol NO. Calculate K at this
temperature for the following reaction:
2NOCl (g) ↔ 2NO (g) + Cl2 (g)

jfraser · Answer

you know the amounts of each substance, and you know the volume of the container, so find the concentration of each gas.

set up the K equation with [products]\[reactants] and plug in to solve