The mass of one molecule of Hydrogen (H2) is 3.35 • 10-²³ what is the mass of one mole of hydrogen?

M (H2) = Mr (H2) = Ar (H) * N (H) = 1 * 2 = 2 g / mol.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.