The density of Pb is 11.4 g/mL. A 29.3 g piece of metal is 37.2 % by mass lead. How many mL of lead are in the metal?
0.372 * 29.3 g = 10.9 grams of Pb
10.9 g ( 1 mL / 11.4 g) = ( 10.9 / 11.4 ) mL of lead
10.9 g ( 1 mL / 11.4 g) = ( 10.9 / 11.4 ) mL of lead