## Introductory Chemistry (5th Edition)

a) $2.85\times10^{-7} km^{3}$. b) $285000 dm^{3}$. c) $2.85 \times10^{8} cm^{3}$.
a) To convert from $m^{3}$ to $km^{3}$, we divide the area by 1000000000 because $1 km^{3}=1000000000 m^{3}$. $285 m^{3}×\frac{1 km^{3} }{1000000000 m^{3} }=2.85\times10^{-7} km^{3}$. b) To convert from $m^{3}$ to $dm^{3}$, we multiply the area by 1000 because $1 m^{3}=1000 dm^{3}$. $285 m^{3}×\frac{1000 dm^{3} }{1 m^{3} }=285000 dm^{3}$. c) To convert from $m^{3}$ to $cm^{3}$, we multiply the area by 1000000 because $1 m^{3}=1000000 cm^{3}$. $285 m^{3}×\frac{1000000 cm^{3} }{1 m^{3} }=2.85 \times10^{8} cm^{3}$.