Question

what is the mass of o.5 mole of water molecules.​

Answer 1

Answer:

Explanation:

What is the mass of 0.5 mole of water

In order to solve this problem, we should know the mass of 1 mole of water. This can be obtained by using the given values of the atomic masses of hydrogen and oxygen as follows : <br>

mole of water

= Molecular mass of

in grams = Mass of 2H atoms + Mass of H atom <br>

grams . Thus, the mass of 1 mole of water is 18 grams. <br> Now, Mass of 1 mole of water

g <br> So, Mass of 0.5 mole of water

Thus, the mass of 0.5 mole of water

is 9 grams.

Answer 2

Answer:

• atomic mass=H=1u, O=16u, the mass of 1 mole water =18g, thus 0.5mole =9g