Answer : The mass of oxygen present in the flask is 0.03597 grams.
Explanation :
First we have to determine the moles of gas.
Now we have to calculate the moles of the oxygen gas.
Using ideal gas equation:
As, the moles is an additive property. So,
where,
P = pressure of gas = 608 mmHg = 0.8 atm
(conversion used : 1 atm = 760 mmHg)
V = volume of gas = 1 L
T = temperature of gas = 373 K
= number of moles of oxygen gas = ?
= number of moles of carbon dioxide gas = 0.025 mole
R = gas constant =
Now put all the given values in the ideal gas equation, we get:
Now we have to calculate the mass of oxygen gas.
Therefore, the mass of oxygen present in the flask is 0.03597 grams.