Answer to Question #145411 in General Chemistry for nis

Question

A 1.14 mol sample of argon gas occupies a volume of L at STP.

Answer 1

Number of moles, n = 1.14 mole

STP means standard temperature and pressure

i.e temperature =0°C

T = 273K

Pressure, P = 1atm

Applying ideal gas equation

PV = nRT

where, R = universal gas constant

= 0.082 L.atm.mol.K

So, V = nRT/P

Putting the values we get

Volume of argon gas,

V = 1.14×0.082×273 L

= 25.52 L

Hence, the volume of argon gas = 25.52 L