# Air has a density of 0.0013 g/mL. What is the mass of 6.0-L sample of air?

Feb 27, 2017

Approx. $8 \cdot m g$.

#### Explanation:

$\rho , \text{density"="Mass"/"Volume}$.

And thus $\text{mass}$ $=$ $\rho \times \text{volume}$

$= 0.0013 \cdot g \cdot \cancel{m {L}^{-} 1} \times {10}^{3} \cdot \cancel{m L} \cdot \cancel{{L}^{-} 1} \times 6.0 \cdot \cancel{L}$

$= 7.8 \times {10}^{-} 3 \cdot g .$