Question

From pv=nrt equation ,calculate molecular weight and density of a gas​

Answer 1

PV = nRT

n = w / M

PV = (w / M) RT

P (M) = (w / V) RT

PM = dRT

or

d = PM / RT

where d is density or absolute density

Answer 2

Explanation:

n=number of moles

n=given mass/molecular mass(m/M)

PV=mRT/M

So M=mRT/PV

Density(D) =given mass/Volume (m/V)

P=DRT/M

D=PM/RT