Question

What is the weight of 10 moles of a mixture with composition 15% O2, 25% SO2, 30% COCl2, 25% SO3 and 5% N2?

(a) 124

(b) 345

(c) 507

(d) 719

I had been asked this question in my homework.

Enquiry is from Analyses of Multicomponent Solutions and Mixtures in chapter Moles, Density & Concentration of Basic Chemical Engineering

Answer 1

Correct option is (d) 719

To explain I would say: Molecular weight of mixture = (15*32 + 25*64 + 30*99 + 25*80 + 5*28)/100 = 71.9, => Weight of mixture = 71.9*10 = 719.