What is the density (g/cm3) of tin if 4.56 × 10²⁰ atoms make a cube 2.31 mm on each side? A) 0.00729 B) 169 C) 3.28 D) 0.0142 E) 7.29

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Quizplus · Accepted Answer

To find the density, first calculate the volume of the cube in cm³: (2.31 mm)³ = (0.231 cm)³ = 0.0123 cm³. Next, find the mass of the tin atoms: 4.56 × 10²⁰ atoms × (118.71 g/mol) / (6.022 × 10²³ atoms/mol) = 0.0899 g. Finally, density = mass/volume = 0.0899 g / 0.0123 cm³ = 7.29 g/cm³.

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