Question

How many atoms are in 131.97 liters of water vapor at STP?

Answer 1

xmoles (6.022x10^(23)) = number of atoms of water at STP
I belive thats correct ^,^

Answer 2

Answer:Total atoms in 131.97 liters of water vapor at STP are
`1.0643* 10^(25) atoms`.

Step-by-step explanation:

At STP, one mole of gas occupies 22.4 L of volume.

Then 131.97 L of the volume will be occupied by:

`(1)/(22.4 L)* 131.97 L=5.8915 moles`

Number of water vapor molecules :

`Moles* N_A=5.8915 mol* 6.022* 10^(23) mol^(-1)=3.5478* 10^(24) molecules`

In 1 molecule of water vapor = 3 atoms

Total number of atoms in
`3.5478* 10^(24) molecules`:

`3* 3.5478* 10^(24) molecules=1.0643* 10^(25) atoms`

Total atoms in 131.97 liters of water vapor at STP are
`1.0643* 10^(25) atoms`.