The volume of a sphere is (4/3)πr3 and the density of copper is 8.96g/cm3.

what is the radius (in cm) of a pure copper sphere that contains 1.41×1024 copper atoms?

The radius (in cm) of a pure copper sphere that contains 1.41×10²⁴ copper atoms r = 1,583 cm

Density is a quantity derived from the mass and volume

density is the ratio of mass per unit volume

The unit of density can be expressed in g / cm3 or kg / m3

Density formula:

ρ = density

m = mass

v = volume

Sphere is a 3-dimensional space constructed by many circles and the same center point

Ball volume is formulated

V = 4/3 . π r ³

Moles are units of particles where 1 mole is the number of particles contained in a substance which is equal to many atoms in 12 gr C-12

1 mol = 6.0210²³ particles

To find the radius of copper, we determine the mole and its mass first

relative atomic mass Cu = 63.5

mole Cu = 1.41 × 1024: 6,02.10²³

mole Cu = 2,342

mass Cu = 2,342 x 63.5

mass Cu = 148,717 grams

densitiy Cu = mass: volume

volume = mass: density

4 / 3π r³ = 148.717: 8.96g / cm³

4 / 3π r³ = 16,597 cm³

4,186 r³ = 16,597 cm³

r³ = 3,965

r = 1,583 cm

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Keywords: density, Cu, sphere

a polar bond is formed when electrons are shared unevenly between atoms

fe 55.85 g/mol and h2o 18.02 g/mol.