Question

a flask with a volume of 125 mL contains air with a density of 1.197 g/L. what is the mass of the air contained in the flask?

Answer 1

Density can be defined as the mass of a sample present per unit volume.

$Density = \frac{Mass}{Volume}$

Given the volume of air = 125 mL

Converting air from mL to L,

$125 mL * \frac{1 L}{1000 mL} = 0.125 L$

Density of air = 1.197 g/L

Calculating the mass of air from density and volume:

Mass of air  = $0.125 L * \frac{1.197g}{L} =0.150 g$

Therefore, the mass of 125 mL of air with a density of 1.197 g/L is 0.150 g