A countercurrent multiple-contact extraction system is to treat 50 tons/hr of wet, sliced sugar beets, with fresh water as the solvent. The beets have the following analysis: The strong solution leaving the system is to contain 0.15 mass fraction sugar, and 97 percent of the sugar in the sliced sugar beets is to be recovered. Determine the number of extraction cells required, assuming equilibrium between the underflow and overflow from each cell: a. If each ton of dry pulp retains 3 tons of solution. b. If each ton of dry pulp retains 3 tons of water. A countercurrent multiple-contact extraction system is to treat 50 tons/hr of wet, sliced sugar beets, with fresh water as the solvent. The beets have the following analysis: The strong solution leaving the system is to contain 0.15 mass fraction sugar, and 97 percent of the sugar in the sliced sugar beets is to be recovered. Determine the number of extraction cells required, assuming equilibrium between the underflow and overflow from each cell: a. If each ton of dry pulp retains 3 tons of solution. b. If each ton of dry pulp retains 3 tons of water