Answer: The pressure of the gas in atmospheres is 1.76
Explanation:
According to ideal gas equation:
[tex]PV=nRT[/tex]
P = pressure of gas = ?
V = Volume of gas = 70.0 L
n = number of moles = [tex]\frac{\text {given mass}}{\text {Molar mass}}=\frac{354.5g}{71g/mol}=5moles[/tex]
R = gas constant =[tex]0.0821Latm/Kmol[/tex]
T =temperature =[tex]30.0^0C=(30.0+273)K=300.0K[/tex]
[tex]P=\frac{nRT}{V}[/tex]
[tex]P=\frac{5\times 0.0821Latm/K mol\times 300K}{70.0L}=1.76[/tex]
Thus the pressure of the gas in atmospheres is 1.76
