(a) The mass of air in the flask before connecting to vacuum pump is 30.98 g
(b) The density of the air in the flask is 0.155 g/cm³
The given parameter:
volume of the flask, V = 200 cm³
the initial mass of the flask, m = 30.98 g
final mass of the flask = 30.72 g
To find:
- a. the mass of air in the flask before connecting to vacuum pump, in g
- b. the density of the air in the flask
The mass of air in the flask before connecting to vacuum pump is 30.98 g
The density of the air in the flask is calculated as:
[tex]density = \frac{mass}{volume} = \frac{30.98 \ g}{200 \ cm^3} = 0.155 \ g/cm^3[/tex]
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