Answer: [tex]0.20\times 10^{-5}moles[/tex]
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 Liters at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.
To calculate the moles, we use the equation:
[tex]\text{Number of moles}=\frac{\text{Given molecules}}{\text {Avogadro's number}}[/tex]
[tex]\text{Number of moles}=\frac{1.23\times 10^{18}}{6.023\times 10^{23}}=0.20\times 10^{-5}moles[/tex]
Thus the moles of water are [tex]0.20\times 10^{-5}[/tex]
