Question

354.5 g of chlorine gas is held with a fixed volume of 70.0 L. What is the pressure of the gas in atmospheres if it’s temperature is 30.0 C

Answer 1

Answer: The pressure of the gas in atmospheres is 1.76

Step-by-step explanation:

According to ideal gas equation:

`PV=nRT`

P = pressure of gas = ?

V = Volume of gas = 70.0 L

n = number of moles =
`\frac{\text {given mass}}{\text {Molar mass}}=(354.5g)/(71g/mol)=5moles`

R = gas constant =
`0.0821Latm/Kmol`

T =temperature =
`30.0^0C=(30.0+273)K=300.0K`

`P=(nRT)/(V)`

`P=(5* 0.0821Latm/K mol* 300K)/(70.0L)=1.76`

Thus the pressure of the gas in atmospheres is 1.76