a 0.825 g piece of copper foil (d=8.94 g/cm^3) measures 5.00 cm X 7.50 cm. Calculate the volume of the copper foil. Calculate the thickness of the copper foil.

Answer 1

V = lwh

d = m/V

8.94 g/ cm^3 = 0.825 g/v

V = 0.825g/(8.94 g/ cm^3) = 0.09228187919 cm^3

V = lwh, h = V/lw = 0.09228187919 cm^3/(7.50 cm)(5.00)cm = 0.09228187919 cm^3/37.5 cm^2 = 0.00246085011 cm thick

Sig fig: 0.00246 cm thick