I need help fast plz 10 points and maybe a

The rules of engagement (roe) working group is often used to (select all that apply.)

Find the mass, in grams, of 5.00*10^23 molecules of f2

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)