Density $D=\frac{M}{V},$

$M$ in grams $,V$ in $mL$ or $c{m}^3,1mL=1c{m}^3$

$35\mathrm{.}3mL$ of a substance has a mass of $42\mathrm{.}07$ grams. What is the density of the substance?

Common Densities $($pg $36)$

Water $=1\frac{g}{m}L$

Aluminum $=2\mathrm{.}7\frac{g}{m}L$

Lead $=11\mathrm{.}4\frac{g}{m}L$

Ice $=0\mathrm{.}92\frac{g}{m}L$

a$)$ What is the mass in grams of $34\mathrm{.}6mL$ of Lead?

$M=DxV=11\mathrm{.}4\frac{g}{m}l34\mathrm{.}6ml$