Which contains more molecules, a mole of hydrogen or a mole of carbon? Naim 00:06 Small Molecules and the Chemistry of Life Which contains more molecules, a mole of hydrogen or a mole of carbon? a. A mole of carbon b. A mole of hydrogen c. Both contain the same number of molecules. d. Inadequate information is provided. e. It depends on atmospheric pressure. Answer: C Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+