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 ft³, which is 28,316.8 cm³. The mass is volume times density: 28,316.8 cm³ * 22.5 g/cm³ = 636,123 g. Converting to pounds: 636,123 g / 453.6 g/lb = 1,402.1 lb, approximately 1.4 * 10³ lb.

Iridium Is Essentially Tied with Osmium for the Distinction of Being