Question

What is the mass, in pounds, of 389 mL of a gas that has a density of 1.29 g/L?

Answer 1

Answer: Mass of gas is 0.001 pounds.

Step-by-step explanation:

Density is defined as the mass contained per unit volume.

`Density=(mass)/(Volume)`

Given : Mass of gas = ?

Density of gas =
`1.29g/L`

Volume of gas = 389 ml = 0.389 L (1L=1000ml)

Putting in the values we get:

`1.29g/L=(mass)/(0.389L)`

`mass=0.5grams`

`mass=0.5* 0.002lb=0.001lb` (1g =0.002 lb)

Thus the mass of gas is 0.001 pounds.