Question

At ntp the density of a gas is 0.00356g/ml what is the molecular mass

Answer 1

Hey Dear,

◆ Answer -

M = 87.07 g/mol

◆ Explanation -

# Given -

ρ = 0.00356 g/ml = 3.56 kg/m^3

# Solution -

According to ideal gas equation -

PV = nRT

PV = (W/M)RT

PM = (W/V)RT

PM = ρRT

M = ρRT/P

Substituting the values -

M = 3.56 × 8.314 × 298 / 1.013×10^5

M = 0.08707 kg/mol

M = 87.07 g/mol

Hence, molecular mass of the given gas is 87.07 g/mol

Hope this helps you. Thanks for asking..