Iridium is essentially tied with osmium for the distinction of being called the "densest element" with a density of 22.5 g/cm³.What would be the mass in pounds of a 1.0 ft × 1.0 ft × 1.0 ft cube of iridium.(1 lb = 453.6 g) A)1.5 lb B)5.2 lb C)6.20 lb D)1.4 × 10³ lb E)6.4 × 10⁵ lb

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The volume of the cube is 1.0 ft × 1.0 ft × 1.0 ft = 1.0 ft³. Converting to cm³, 1 ft³ = 28,316.8 cm³. The mass is then 28,316.8 cm³ × 22.5 g/cm³ = 636,123 g. Converting to pounds, 636,123 g ÷ 453.6 g/lb ≈ 1,402 lb, which is approximately 1.4 × 10³ lb.

Iridium Is Essentially Tied with Osmium for the Distinction of Being