Question

calculate the ratio by number of atoms in water molucules?

Answer 1

Answer:

If we want to make 5 molecules of water, we need 10 hydrogen atoms and 5 oxygen atoms. The ratio of atoms we will need to make any number of water molecules is the same: 2 hydrogen atoms to 1 oxygen atom. Figure 6.1 Water Molecules.

Answer 2

Answer:

If we want to make 5 molecules of water, we need 10 hydrogen atoms and 5 oxygen atoms. The ratio of atoms we will need to make any number of water molecules is the same: 2 hydrogen atoms to 1 oxygen atom

The ratio in the no.of atom is 2:1

Step-by-step explanation:

as the mass ratio is given as 1:8

now dividing it by its molar mass

molar mass of H2=2

molar mass of O2=32

mole ratio is 1/2 : 8/32

                   =2:1

mole x avagadro number is no.of atom:

so 2 x 6.022 x 10^23 : 6.022 x 10^23

by cancelling 6.022 x 10^23 both sides

We get 2:1 ratio for the no.of atoms

Explanation: