Answer
(a) $255~cm^3$
(b) $2.55\times 10^{-4}~m^3$
Work Step by Step
(a) $255~mL\times \frac{10^{-3}~L}{1~mL} \times \frac{10^3~cm^3}{1~L} = 255~cm^3$
(b) $255~cm^3\times \frac{1~m^3}{10^6~cm^3} = 255 \times 10^{-6}~m^3 = 2.55\times 10^{-4}~m^3$
