# Calculating Mass of a Sphere

1) Grains of fine beach sand are assumed to be spheres of radius 57.5 micro meters. These grains are made of silicon dioxide which has a density of 2600kg/m^3.

What is the mass of each grain of sand and answer in kg.

Got answer of 2.1 * 10^-9 kg from previous work, but wrong answer. Please step by step help work this out for correct answer.

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#### Solution Preview

See attachment. Hope it helps.

1) Grains of fine beach sand are assumed to be spheres of radius 57.5 micro meters. These grains are made of silicon dioxide which has a density of 2600kg/m^3.

What is the mass of each grain ...

#### Solution Summary

The solution provides a detailed, step-by-step calculation of the mass of a sphere given the radius and density.

$2.19