If 0.100 mol of CoCl₂ is placed in a 10.0 L flask, calculate the equilibrium concentrations of all species for the following reaction:
CoCl₂(g) ⇌ Co(g) + Cl₂(g) Kc = 8.3 x 10⁻⁴
a) [CoCl₂] = 0.070 M, [Co] = 0.015 M, [Cl₂] = 0.015 M
b) [CoCl₂] = 0.030 M, [Co] = 0.035 M, [Cl₂] = 0.035 M
c) [CoCl₂] = 0.045 M, [Co] = 0.055 M, [Cl₂] = 0.055 M
d) [CoCl₂] = 0.060 M, [Co] = 0.040 M, [Cl₂] = 0.040 M