Question

A 3.8 L volume of neon gas (Ne) is at a pressure of 6.8 atm and a temperature of 470 K. The atomic mass of neon is 20.2 g/mol, and the ideal gas constant is R=8.314 J/mol*K. The mass of neon is closest to what?

Answer 1

The mass of neon is 13.534 g.

Step-by-step explanation:

Given that,

Volume = 3.8 L

Pressure = 6.8 atm

Temperature = 470 K

Atomic mass of neon =20.2 g/mol

Gas constant R = 8.314 = 0.082057 L atm/mol K

We need to calculate the mass of neon

Using equation of gas

`PV=nRT`

`6.8*3.8=n*0.082057*470`

`n=(6.8*3.8)/(0.082057*470)`

`n= 0.670`

We know that,

`n = (m)/(molar\ mass)`

`m = n* molar\ mass`

`m=0.670*20.2`

`m=13.534\ g`

Hence, The mass of neon is 13.534 g.