Question

A tank contains 651 L of compressed oxygen gas at a pressure of 122 atm at 25.0 degree C. What is the volume of the oxygen (in L) at a pressure of 745 torr if the temperature remains unchanged?
5.23 L
8 10 times 10^4L
0.184 L
651 L

Answer 1

P1V1=P2V2

745 torr*1 atm/760 torr=0.980 atm

122 atm*651L=0.980 atm * x 

x=(122 atm*651L)/0.980 atm =81042 L ≈ 81000 L=8.10*10⁴ L
8.10*10⁴ L is second answer looks like this?