Chapter 7, Problem 99CP

Interpretation Introduction

Interpretation:

The molar mass of gas and the identity of the gas needs to be determined if mass of the gas is 4.0g and volume of the gas is 11.2 L at 2atm 273K.

Concept introduction:

The ideal gas law equation is represented as follows:

  $PV=nRT$

Or,

  $n=\frac{PV}{RT}$

Here,

n = number of moles

P = pressure

R = gas constant

V = volume

T = temperature

And,

  $\text{number of moles=}\frac{\text{mass}}{\text{molar mass}}$