# Calculate the mass density of a pure sample of oxygen gas at a pressure of 1.0 atm, a volume of 7.8 L at 197.2C?

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Calculate the mass density of a pure sample of oxygen gas at a pressure

of 1.0 atm, a volume of 7.8 L at 197.2C.

Calculate the mass density of a pure sample of oxygen gas at a pressure

of 1.0 atm, a volume of 7.8 L at 197.2C.

##### 1 Answer

The density of

#### Explanation:

We can use the Ideal Gas Law to solve this problem.

#color(blue)(|bar(ul(color(white)(a/a)PV = nRT color(white)(a/a)|)))" "#

Since

We can rearrange this to

But

∴

#color(blue)(|bar(ul(color(white)(a/a)ρ = (PM)/(RT)color(white)(a/a)|)))" "#

∴