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Solution: An osmium sphere contains 1.289 x 10 23 osmium atoms and has...

Question

An osmium sphere contains 1.289 x 10 23 osmium atoms and has a radius 0.755 cm. The molar mass of osmium is 190.23 g•mol-1. What is the density of osmium? Recall that the volume of a sphere is given by the formula: 4/3 π r 3

a. 22.6 g/cm 3 

b. 6.24 g/cm 3

c. 1.80 g/cm 3

d. 0.822 g/cm 3