Question

A drug has a molecular weight of 384. It contains 25% by mass of oxygen. Number of atoms of oxygen in one molecule of it

​

Answer 1

Answer:

32 g

Solution — Mass of one mole of oxygen molecule (O2) = molecular mass of oxygen molecule (O2) in gram = 32 g. Mass of a single oxygen molecule = 32/1 × 1024 = 3.2 × 10-23g.