Answer: The correct answer is : 23.5 mol of O2 .
At STP ( Standard Temperature and potential ) 1 mole of gas has 22.4 L of volume .The follow can be expressed as :
[tex] Mole = \frac{given volume in L}{22.4 L } * 1 mol [/tex]
Given volume of O2 gas = 526 L
Plugging value in the formula :
[tex] Mole = \frac{526 L}{22.4 L} * 1 mol [/tex]
Mole of O2 gas at STP = 23.5 mol
