Question

A flask with a tap has a volume of 200 cm3. When full of air, the flask is connected to a vacuum pump, the air is pumped out and then the tap is closed. The flask now has mass of 30.72 g. calculate:
a. The mass of the air in the mask before connecting to the vacuum pump, in g
b. The density of the air in the flask.

Answer 1

Answer:

A lithosphere is the rigid, outermost shell of a terrestrial-type planet or natural satellite. On Earth, it is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater