Question

How many moles of xenon gas, Xe, would occopy 37.8L at stp

Answer 1

The number of moles of xenon are 1.69 mol.

Step-by-step explanation:

Given data:

Number of moles of xenon = ?

Volume of gas = 37.8 L

Temperature = 273 K

Pressure = 1 atm

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K

T = temperature in kelvin

Now we will put the values in formula.

1 atm × 37.8 L = n × 0.0821 atm.L/ mol.K ×273 K

37.8 atm.L = n × 22.413 atm.L/ mol.

n = 37.8 atm.L / 22.413 atm.L/ mol.

n = 1.69 mol

The number of moles of xenon are 1.69.