Answer to Question #309436 in General Chemistry for Jojo

Question

A sample of oxygen gas is at 9.44atm of pressure, has a volume of 19.58L, and is at a temperature of 30.26^oC. How many particles, in moles of oxygen gas are in the sample?

Answer 1

Pressure on oxygen gas = 9.44 atm

Volume of gas = 19.58 L

Temperature = 30.26 ^oC = 303.26 K

Using ideal gas equation

PV=nRT

9.44×19.58=n × 0.0821×303.26

n= 7.42 moles

Number of particles of oxygen in moles = 7.42 moles