93. Solving a chemistry problem

5. When studying the adsorption of dissolved organic matter on the interface between an aqueous solution and air, it was found that the area occupied by a molecule of organic matter in the surface layer at maximum surface filling is equal to S0 and is given in Table 5. The same table shows the values ​​of the density of the adsorbed substance (ρ ) and its molar mass (M). Calculate the length of an organic molecule, which is approximately equal to the thickness of the surface layer.

option number S0*1019, m2 ρ, kg/m3 M, g/mol
9 3.4 1120 112

When solving the task, be sure to check the compliance of the data used in the calculation with the selected system of units (preferably the international SI system)