A yellow-brown saturated solution of I₂ in water 

(a) Is initially brought into contact with colorless CCl₄(l) (bottom layer in (a)). Once the system reaches equilibrium

(b) We observe that I₂ is considerably more soluble in CCl₄(l) (violet, bottom layer) than it is in H₂O(l) (colorless, top layer). The concentration of I₂ in its saturated aqueous solution is 1.33 x 10^–3 M, and the equilibrium achieved when I₂ distributes itself between H₂O and CCl₄ is

(a) A 10.0 mL sample of saturated I₂(aq) is shaken with 10.0 mL CCl₄. After equilibrium is established, the two liquid layers are separated. How many milligrams of I₂ will be in the aqueous layer?

(b) If the 10.0 mL of aqueous layer from part (a) is extracted with a second 10.0 mL portion of CCl₄, how many milligrams of I₂ will remain in the aqueous layer when equilibrium is reestablished?

(c) If the 10.0 mL sample of saturated I₂(aq) in part (a) had originally been extracted with 20.0 mL CCl₄, would the mass of I₂ remaining in the aqueous layer have been less than, equal to, or greater than that in part (b)? Explain.

Transcribed Image Text:

(a) (b)