• We are given the following :
P = 10 Atm
V= 50 L
R=0.0821atm/mole-k)
T= 27°C = 273.15 + 27°C = 300 .15 K = 300K
• We will use the following formula in order to find moles of hydrogen gas
PV = nRT
n = PV /RT
=( 10 * 50 )/ ( 0.0821 * 300)
n = 500/24.63
n = 20.3 moles
Therefore ; moles of hydrogen gas present = 20.3 moles