How many oxygen atoms are there in a formula unit of UO₂(C₂H₃O₂)₂ • NH₄C₂H₃O₂ • 4H₂O? Chemistry How many oxygen atoms are there in a formula unit of UO₂(C₂H₃O₂)₂ • NH₄C₂H₃O₂ • 4H₂O? A) 12 B) 4 C) 10 D) 8 E) 21 Answer: A) 12 Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+