Question

C. How many moles of gas are in a container with a volume of 9.55 mL at 35 °C and a pressure of 895 mmHg?

Answer 1

Answer: There are
`4.45* 10^(-4)moles` of gas are in a container with a volume of 9.55 mL at 35 °C and a pressure of 895 mmHg

Step-by-step explanation:

According to ideal gas equation:

`PV=nRT`

P = pressure of gas = 895 mm Hg= 1.18 atm (760 mm Hg= 1 atm)

V = Volume of gas = 9.55 ml = 0.00955 L (1 L=1000ml)

n = number of moles = ?

R = gas constant =
`0.0821Latm/Kmol`

T =temperature =
`35^0C=(35+273)K=308K`

`n=(PV)/(RT)`

`n=(1.18atm* 0.00955L)/(0.0821L atm/K mol* 308K)=4.46* 10^(-4)moles`

Thus there are
`4.45* 10^(-4)moles` of gas are in a container with a volume of 9.55 mL at 35 °C and a pressure of 895 mmHg