For the extraction of Cu 2 by dithizone in CCl 4 , KL 1 1 10 4 , K M 7 10 4 , K a 3 10 5 , 5 10 22 , and n 2 (a) Calculate the distribution coefficient for extraction of 0 1 M Cu 2 into CCl 4 by 0 1 mM dithizone at pH 1 0 and at pH 4 0 (b) If 100 mL of 0 1 M aqueous Cu 2 are extracted once with 10 ...

a Since there is so much more dithizone than Cu ...

For the extraction of Cu 2+ by dithizone in CCl 4 , KL= 1.1 10 4

Question:

For the extraction of Cu²⁺ by dithizone in CCl₄, KL= 1.1 × 10⁴, K_M = 7 × 10⁴, K_a = 3 × 10^-⁵, β = 5 × 10²², and n = 2.

(a) Calculate the distribution coefficient for extraction of 0.1 μM Cu²⁺ into CCl₄ by 0.1 mM dithizone at pH 1.0 and at pH 4.0.

(b) If 100 mL of 0.1 μM aqueous Cu²⁺ are extracted once with 10 mL of 0.1 mM dithizone at pH 1.0, what fraction of Cu2+ remains in the aqueous phase?

Distribution
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