Respuesta :
The number of molecules in the 31.8 moels of water is [tex]1.91 \times 10^{25}[/tex]
We know that
The Number of moles in particles = [tex]\frac{Number\ of\ particles}{6.022 \times 10^{23}}[/tex]
So, the number of water molecules should be
= [tex]31.8 \times 6.022\times 10^{25}[/tex]
= [tex]1.91 \times 10^{25}[/tex]
Therefore we can conclude that the number of molecules in the 31.8 moels of water is [tex]1.91 \times 10^{25}[/tex]
Learn more about the molecules here: brainly.com/question/19922822