Determine the empirical formula of a compound containing 83% potassium and 17.0% oxygen. Chemistry Chapter 6 Determine the empirical formula of a compound containing 83% potassium and 17.0% oxygen. A) KO B) KO2 C) K2O3 D) K2O E) none of the above Answer: D Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+