A 9.56 g sample of a compound contains 3.05g of potassium K 2.77 g of chlorine, Cl and Oxygen O. Calculate the empirical formula

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Can someone me with 1 to 4 plz. fast

What is the empirical formula for c4h8o2