It is known that the molar refraction of a liquid is approximately equal to its molar volume. Based on this, calculate the radius of a molecule of a substance (solvent), based on the density ρ and the refractive index n of light, indicated below for the corresponding problem number and assuming that the molecule has a spherical shape.
solvent ρ, g/cm3 n
ethyl acetate С4Н8О2 0.913 1.3798

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