Question: how many hydrogen atoms are there in 100.0 grams of h2o?
Answer: Question: How Many Hydrogen ATOMS Are There In 100.0 Grams Of H_20? 3.35 Times 10^24 Hydrogen Atoms 6.69 Times 1024 Hydrogen Atoms 9.23 Times 10^-24 Hydrogen Atoms 1.85 Times 10^-23 Hydrogen Atoms.