# What is the mass m of 3.0 L of liquid oxygen, if its density is 1.14 kg/L?

Apr 5, 2017

$\text{Mass}$ $=$ $3.42 \cdot k g$

#### Explanation:

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

Thus $\text{mass"=rhoxx"volume} = 1.14 \cdot k g \cdot \cancel{{L}^{-} 1} \times 3.0 \cdot \cancel{L}$

$= 3.42 \cdot k g$.

As I recall, liquid nitrogen is a lot less dense. It is interesting to reflect that water ice would float in liquid oxygen. (The next time I get some liquid oxygen, I am going to try this!)