Answer:
0.085049833
Step-by-step explanation:
use the formula n=number of particles/Avogadro's number and find the value of n which is miles and then use the formula n=mass/molar mass. The molar mass you multiply the mass number of oxygen by 2
molar mass= 32g/mol
Avogadro's number=6.02*10^23
number of particles=1.6*10^21