Question

Which of the following molecules would form a micelle?a. NaClb.CH3COOHc. CH3COO^-NH^4+d. CH3(CH2)^10COO^-Na^+e. CH3(CH2)^10CH3

Answer 1

Answer:

CH₃(CH₂)₁₀COONa

Explanation:

The compounds given are

NaCl

CH₃COOH

CH₃COONH₄

CH₃(CH₂)₁₀COONa

CH₃(CH₂)₁₀CH₃

CH₃(CH₂)₁₀COONa will form micelle . Micelle are formed by soap solution which helps in the removal of oily dirt from our clothes . They are spherical shaped tiny droplet of oil which contains the tail of long chain organic compound like salt of long chain fatty  acids . The surface of the droplet is lined with the tip of the chain which consists of negative charge of the tail end . On the average , each micelle contains a specific amount of charge . Due to it , they make colloidal solution in the water and gets washed off my water . The oily dirt is thus removed .

CH₃(CH₂)₁₀COONa   ⇄     CH₃(CH₂)₁₀COO⁻   +    Na⁺

CH₃(CH₂)₁₀COO⁻  part which is long chain of fatty acid gets adsorbed by oily droplet formed by oily dirt  and forming micelle .