18 mols of gold are shaped like a sphere. What is the sphere’s diameter. Note the atomic mass of gold is 0.197 kg/mol and its density is 19,300 kg/m3.

Answer 1

volumesphere=mass/density=
18*.197/19,300 m^3

but volume= 4/3 PI r^3
r= cubrt(3*19,300/(4PI * 18*.197)) meters.
multiply by 2 to get diameter.