A new pesticide, MCTP, is added to a closed ecosystem containing air, water, and fish, all af 250C. Given the information below, compute the approximate distribution of MCIP in the system if. (a) 0.1 mot of MCTP is added to the system.

(b) 75.0 mol of MCTP is added to the system. (c) after removing some of the MCTP from the system in part (b), the equilibrium concentration of MCTP in the ecosystem air is 5 x 10 mol/m .

Estimated phase volumes; Ecosystem = 200 m Water = 18 m Fish = 0.001 m'

MCTP properties: Kow = 3200 KB = Kow /0.7 Molecular weight = 150 g/mol Aqueous solubility = 200 mg/L

Vapor pressure = 400 Pa

Density = 1.4 g/mL