In the Densest Molecular Clouds,the Average Density Is Approximately 300

Essay

In the densest molecular clouds,the average density is approximately 300 atoms/cm³.If a cube of molecular cloud gas with this density contained 100 M_⨀ of material (the amount needed to make a 1 M_⨀ star),what would be the length of a side of the cube in units of AU? For reference,the mass of the Sun is 2 × 10³⁰ kg,the mass of a hydrogen atom is 1.7 × 10⁻²⁷ kg,and 1 AU = 1.5 × 10¹¹ m.