Need help with chemistry problem

What is the mass of 8 moles of sodium atoms

)in the deacon process for the manufacture of chlorine, hcl and o2 react to form cl2 and h2o. sufficient air (21 mole% o2, 79% n2) is fed to provide 35% excess oxygen, and the fractional conversion of hcl is 85%. calculate the mole fractions of the product stream components.

Chortling is used to clean water. another possible atom that would also work is a. sodium b. sulfur c. bromine