Question

In: Chemistry

Please rank the following chemicals by their likelihood (highest = 1, lowest = 3) of staying...

Please rank the following chemicals by their likelihood (highest = 1, lowest = 3) of staying dissolved in water vs. partitioning to a more lipohilic component in water like sediments or dissolved organic carbon. Please provide a justification for your answer.

Ethinyl Estradiol: Log Kow = 3.67

DDT: Log Kow = 6.91

Zinc Chloride: Log Kow = 0.15

Expert Solution

Rank 1 = Zinc Chloride

Rank 2 = Ethinyl Estradiol

Rank 3 = DDT

Explanation:

Partition coefficient :

For Zinc chloride logK_ow = 0.15

K_ow = 10^0.15 = 1.41

Therefore for zinc chloride [Solute]_organic : [Solute]_aqueous = 1.41 : 1

For Ethinyl Estradiol logK_ow = 3.67

K_ow = 10^3.67 = 4677

Therefore for Ethinyl Estradiol [Solute]_organic : [Solute]_aqueous = 4677 : 1

For DDT logK_ow = 6.91

K_ow = 10^6.91 = 8128305

Therefore for DDT [Solute]_organic : [Solute]_aqueous = 8128305 : 1

Therefore likelihood of zinc chloride staying dissolved in water is the highest and likelihood of DDT staying dissolved in water is the lowest.

queen_honey_blossom answered 2 years ago

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