Density of Geometric Objects Practice Problems

Calculate the radius of a tin metal sphere (d=7.31 g/cm³) that contains 9.31x10²² tin atoms. Recall the formula for the volume of a sphere is 4/3 π r³ 

Thin cylinders are cut from a large cylinder. The density of the large cylinder is 0.98 g/cm³. It is 350 mm in diameter and 1 m in length. How many thin cylinders can be cut from a large cylinder if each thin cylinder is 0.65 mm thick and 350 mm in diameter? What is the mass of each thin cylinder?

The dimension of a rectangle building block is 11 cm x 23.4 cm x 6.6 cm. Its mass is 1678 g. What is its density?