How many hydrogen atoms are in 5 molecules of isopropyl alcohol C3 H7 O ? Chemistry How many hydrogen atoms are in 5 molecules of isopropyl alcohol C3 H7 O ? A. 5 x (6.02 x 10^23) B. 5 C. 35 D. 35 x (6.02 x 10^23) Answer: C Share this Share on FacebookTweet on TwitterPlus on Google+