Answer: 1.38 moles
Explanation: According to Avogadro's law, 1 mole of every substance contains Avogadro number of particles (atoms, molecules or ions) i.e. \(6.023\times 10^{23}\) particles.
Given : 1 mole molecule of water contains \(6.023\times 10^{23}\) molecules of water.
\(6.023\times 10^{23}\) molecules are present in = 1 mole
\(8.30\times 10^{23}\) molecules will be present in =\(\frac{1}{6.023\times 10^{23}}\times 8.30\times 10^{23}=1.38 moles\)
Thus \(8.30\times 10^{23}\) molecules is equal to 1.38 moles.
