Question

What is the mass of neon that exerts a pressure of 720 mmHg with a temperature of -15.0°C, when the volume of the container is 760 mL?

Answer 1

`"Mass of neon"-=1.36*g`

Explanation:

We use the old Ideal Gas equation...

`n=(PV)/(RT)=((720*mm*Hg)/(760*mm*Hg*atm^-1)xx760*mLxx10^-3*L*mL^-1)/(0.0821*(L*atm)/(K*mol)xx258.15*K)`

`=0.0340*mol`...a mass of .......

`0.034*molxx40.0*g*mol^-1=1.36*g`