Question

one mole of a chemical is the number of grams equal to its ______. percent of solution milliequivalents of solutes atomic number molecular weight

Explanation:

By definition, one mole of a chemical substance has a mass in grams equal to its molecular weight (for molecular substances) or atomic weight (for elements). For example, one - mole of water ($H_2O$) has a mass of approximately 18 grams because the molecular weight of water is 18 g/mol. The other options are not related to the mass - mole relationship. Percent of solution is about concentration, milliequivalents are related to chemical reactivity in terms of charge, and atomic number is the number of protons in the nucleus of an atom.

Answer:

O molecular weight