Sorption kinetics of nitrobenzen

You are working on a project that assesses indoor air pollution by organic chemicals. In this context, you are asked to measure the sorption kinetics of  nitrobenzene from air into foam. To this end, you place a piece of foam into a temperature-controlled box with a volume of 30 m³. You then introduce NBZ to the box.
To accurately measure the kinetics, you need to achieve an equilibrium uptake of 90% of the initially added NBZ into the foam (i.e., this is the distribution at partition equilibrium). The remaining 10 % remains in the air of the box.

How much foam do you have to add to the box to achieve this final distribution? Assume that the box contains only the foam and air and that distribution into the walls of the box is negligible.

	Proceed