10 ml of 1 millimolar surfactant solutio...

10 ml of 1 millimolar surfactant solution forms a monolayer covering `0.24cm^(2)` on a polar substrate.
If the polar head is approximated as a cube. Consider the surfactant is adsorbed only on one face of the cube. What is the edge length of cube? (Answer should be in pm and assume Avogadro's number `=6xx10^(23)` ).

2.0 pm

1.0 pm

0.1 pm

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