Toluene is predominantly used as an industrial feedstock and a solvent. Some of its properties are summarized in the table below. An empirical formula has been obtained between log Koc and log Kow by Baker et al. (1997) 1 : logKOC=0.903logKow+0.094(R2=0.91,N=72) The percentage of organic carbon (i.e., toluene) in the contaminated soil is 4%. 1. Please estimate adsorption coefficient (unit: L/kg ) of toluene. 2. If the aquifer has a porosity of 28% and bulk density of 1.7g/cm3, what is the fraction of contaminant (i.e., toluene) remained in soil water