Question

Find the number of particles in : 8 gram of 0 atoms

Answer 1

Answer:

First calculate ther number of moles of O2 using: moles = mass / relative molecular mass = 8 / 32 = 0.25. No of molecules=no of moles*Avagadro's no. =1/4*6.022*10^23. =1.5055*10^23.