When a sample of the CH₂Cl₂ layer with a volume of 6.75 mL is collected, it requires 17.33 mL of a titrant solution of S₂O₃^2- with a concentration of 0.01216 M to reach the endpoint. The reaction has a 2:1 mole ratio of thiosulfate to iodine. Determine the concentration (in mol/L) of iodine in the dichloromethane layer. Include only the numerical answer (no units).