Question

check all that apply: 18.01 g is the ____________ of water formula weight atomic weight molecular weight molar mass

Explanation:

Water has a chemical formula of $H_2O$. The sum of the atomic - weights of its constituent atoms gives its formula weight, molecular weight, and molar mass. Atomic weight refers to a single atom, and water is a molecule, so its atomic weight does not apply here. The molar mass of water is calculated as $2\times(atomic\ weight\ of\ H)+(atomic\ weight\ of\ O) = 2\times1.008 + 16.00=18.016\approx18.01\ g/mol$. The formula weight, molecular weight (for molecular compounds), and molar mass (in g/mol) have the same numerical value in this case.

Answer:

formula weight, molecular weight, molar mass