Density can be defined as the mass of a sample present per unit volume.
[tex]Density = \frac{Mass}{Volume}[/tex]
Given the volume of air = 125 mL
Converting air from mL to L,
[tex]125 mL * \frac{1 L}{1000 mL} = 0.125 L[/tex]
Density of air = 1.197 g/L
Calculating the mass of air from density and volume:
Mass of air = [tex]0.125 L * \frac{1.197g}{L} =0.150 g[/tex]
Therefore, the mass of 125 mL of air with a density of 1.197 g/L is 0.150 g
