A football has a diameter of 22 cm. It is inflated to 1 atm pressure above normal atmospheric pressure on a sunny summer day when the temperature was 25C. Take normal atmospheric pressure to be 101.3 kPa. What mass of air is contained in the ball?
See below. The answer is about
We are going to use the formula(the ideal gas law)
Then, what is the value of the variants?
(I interpreted "inflated to 1 atm pressure above normal atmospheric pressure" to be 2 atm. If this is wrong, let me know.)
Plug in these values to the formula.
The avarage molar mass of the air is