Answer:
There are 3.08 moles of hydrogen gas in the tank
Explanation:
As we know
[tex]PV = nRT[/tex]
where P is the pressure of the gas in atm
V is the volume in liters
n is the number of moles
R is the gas constant = 0.08206 L·atm/K·mol
and T is the temperature in Kelvin.
Substituting the given values in above equation, we get -
[tex]1.51 * 25 = n * 0.08206 * 149\\n = 3.08[/tex]
There are 3.08 moles of hydrogen gas in the tank