Calculate the mass of a sample of potassium sulfate that contains 0.01g of oxygen.

0.01g of O*(mole of O/16.0g)=moles of O

1 mole of K2SO4=4 moles of O

Moles of O*(1 mole of K2SO4/4 moles of O)= moles of K2SO4,

Moles of K2SO4*(174.26g/mole)=?????