Question

How many lb moles of O are there in 22 g of H2SO4?

(a) 1.978*10^-4

(b) 1.978*10^-3

(c) 1.978*10^-2

(d) 1.978*10^-1

I have been asked this question in an interview.

My query is from Mole and Molecular Weight-I in portion Introductory Concepts of Chemical Process Calculation

Answer 1

Right choice is (b) 1.978*10^-3

The best I can explain: lb mole = 454*gm mole, lb moles of O = 4(lb moles of H2SO4).