10 ml of 1 mM surfactant solution forms a monolayer covering 0.24 cm2 on a polar substrate. If the polar head is approximated as a cube, what is its edge length?

10 ml of 1 mM surfactant solution forms a monolayer covering 0.24 cm2

1.	10 ml of 1 mM surfactant solution forms a monolayer covering 0.24 cm2 on a polar substrate. If the polar head is approximated as a cube, what is its edge length?
A.	1.0 pm
B.	2.0 pm
C.	0.1 nm
D.	2.0 nm
Answer» C. 0.1 nm