Question

calculate the gram molecular mass of h2 O​

Answer 1

Using the periodic table of the elements to find atomic weights, we find that hydrogen has an atomic weight of 1, and oxygen's is 16. In order to calculate the molecular weight of one water molecule, we add the contributions from each atom; that is, 2(1) + 1(16) = 18 grams/mole.

Answer 2

Answer:

mass of one mole of water = 2 g/mol + 16

g/mol = 18 g/mol

Explanation:

using the periodic table of the elements to find atomic weight, we find that hydrogen has an atomic weight of 1, & oxygen's is 16 in order to calculate the molecular weight of one water molecules, we added the contribution from each atom; that is, 2(1) + 1(16) = 18 grams/mole