Question

A flask with a volume of 250.0 mL contains air with a density of 1.240 g/L. What is the mass of the air contained in the flask?

Answer 1

The mass of the air contained in the flask is 310.0 g.

Step-by-step explanation:

To find the mass of the air contained in the flask, we can use the equation:

mass = density * volume

First, we need to convert the density from g/L to g/mL by dividing it by 1000. This gives us a density of 1.240 g/mL. Then, we can multiply the density by the volume of the flask (250.0 mL) to find the mass of the air:

mass = 1.240 g/mL * 250.0 mL = 310.0 g

Therefore, the mass of the air contained in the flask is 310.0 g.

Answer 2

convert 250.0 mL in Liters :

250. 0 / 1000 = 0,25 L

Density = 1.240 g/L

Mass = g ?

m = D * V

m = 0.25 * 1.240

m = 0.31 g

hope this helps!.