The partition coefficient of iodine between CCl4 and water is CCC14/CH20 = K = 85, where the C₁ represent the concentration in mol/L of iodine in the solvent. (a) If you want to extract 90% of the iodine from 100 mL of an aqueous iodine solution in a single extraction, Calculate the volume of carbon tetrachloride needed. (b) If you want to extract 90% of the iodine from 100 mL of an aqueous iodine solution in two extractions of equal volumes, calculate the volume of carbon tetrachloride needed in each. (c) If ß is the fraction of iodine remaining in the aqueous solution after n extractions with equal volumes of CC14, show that as n → ∞, the total required volume of CCl4 per unit volume of water for each extraction is given by:

Construct the expression for Ksp for solid Ba3(PO4)2 in aqueous solution. Вa (РО:)-(s) 3D З Ва" (аq) + 2 РО.* (аq) 1 Based on your knowledge of how the solid will dissociate in aqueous solution, use the tiles to form the expression. Ksp 5 RESET [Ba-(PO:)] 2[Ba:(PO:)-] 3[Ba:(PO:)-] [Ba-(PO:).J? [Ba:(PO:):]3 [Ba*] 3[Ba*] [Ba*j [Ba*"] 3[Ba"] [PO.2] 2[PO] [PO.P [PO.] 2[PO.] [PO. P 3[PO.] [PO. P

1. After 3 hours, Ibuprofen is at 100mg 2. m(t)=400e^−0.462t, K=0.462 Please answer question 5.

To study the photochemical decomposition of aqueous bromine exposed to bright sunlight, we dissolved a small amount of liquid bromine in water contained in a glass jar and placed under direct sunlight. The following data were obtained at 25\deg C:\table [[Tiempo (min ), 10, 20, 30, 40, 50, 60], [Ppm, 2.45, 1.74, 1.23, 0.88, 0.62, 0.44]] Determine the reaction rate order and the specific reaction rate constant: a) Differential method ( The method for obtaining the derivatives is left to your decision) Tiempo (min) Ppm Br₂ 10 2.45 20 1.74 Ć 30 1.23 40 0.88 50 0.62 60 0.44