You can obtain a rough estimate of the size of a molecule with the following simple experiment: let a droplet of oil spread out on a fairly large but smooth water surface. the resulting "oil slick" that forms on the surface of the water will be approximately one molecule thick. given an oil droplet with a mass of 9.00 × 10−7 kg and a density of 918 kg/m3 that spreads out to form a circle with a radius of 41.8 cm on the water surface, what is the approximate diameter of an oil molecule?

The diameter of the oil molecule is .

Explanation:

Mass of the oil drop =

Density of the oil drop =

Volume of the oil drop: v

Thickness of the oil drop is 1 molecule thick.So, let the thickness of the drop or diameter of the molecule be x.

Radius of the oil drop on the water surface,r = 41.8 cm = 0.418 m

1 cm = 0.01 m

Surface of the sphere is given as: a =

Volume of the oil drop = v = Area × thickness

The thickness of the oil drop is and so is the diameter of the molecule.

i would say b

explanation:

but i think i would need more information than that