Question
A thin sheet of gold foil has an area of 2.98 cm2 and a mass of 6.20 mg. How thick is the sheet? The density of gold is 19, 300 kg/m3.
Answers
bobpursley
mass=density*volume=density*area*t
thickness=mass/density*area
= 6.20E-6kg/(19.300kg/m^3*(2.98cm^2)(m/100cm)^2
= 6.20E-6/(19.300*2.98E-4) m
=1.08mm
check my work, that seems pretty thick .
thickness=mass/density*area
= 6.20E-6kg/(19.300kg/m^3*(2.98cm^2)(m/100cm)^2
= 6.20E-6/(19.300*2.98E-4) m
=1.08mm
check my work, that seems pretty thick .