(a) in a gaseous sample of oxygen atoms and diatomic oxygen in equilibrium at 298k andunder a pressure of 1atm, what fraction of it is dissociated?
(b) at what temperature is the sample 1% dissociated?
(c) at 298k and under a pressure of 10,000 atm, what fraction is dissociated?

Explanation:see below as shown from pics

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.

am i too late?

explanation: