Question

A cylinder of argon gas contains 50.0 L or Ar at 18.4 atm and 'C. How many moles of argon are in the cylinder?

Answer 1

A cylinder of argon gas contains 50.0 L of Ar at 18.4 atm and 127 °C. How many moles of argon are in the cylinder?

Number moles of Argon : 28.03

Further explanation

Given

The volume of gas=50 L

P = 18.4 atm

T = 127+273=400 K

Required

moles of Argon

Solution

Use ideal gas Law :

`\tt n=(PV)/(RT)\\\\n=(18.4* 50)/(0.08205* 400)\\\\n=28.03`