The mole of water that has been consisting of [tex]\rm 1.23\;\times\;10^1^8[/tex] molecules has been 2.04 [tex]\rm \bold{\times\;10^-^6}[/tex] mol.
The moles have been the mass of the molecule that has been present with respect to the molecular mass of the compound. The number of molecules that have been present in a mole of the compound has been equivalent to the Avogadro number.
The Avogadro number has been constant with a value of 6.023 [tex]\rm \times\;10^2^3[/tex].
Thus, the number of molecules in a mole of the compound has been given by:
1 mole = 6.023 [tex]\rm \times\;10^2^3[/tex] molecules
The given molecules of water have been [tex]\rm 1.23\;\times\;10^1^8[/tex]. The moles of the water molecule has been given by:
6.023 [tex]\rm \times\;10^2^3[/tex] molecules = 1 mole of water
[tex]\rm 1.23\;\times\;10^1^8[/tex] molecules = [tex]\rm \dfrac{1}{6.023\;\times\;10^2^3}\;\times\;1.23\;\times\;10^1^8[/tex]
The moles of water have been = 2.04 [tex]\rm \bold{\times\;10^-^6}[/tex].
Thus, the mole of water that has been consisting of [tex]\rm 1.23\;\times\;10^1^8[/tex] molecules has been 2.04 [tex]\rm \bold{\times\;10^-^6}[/tex] mol.
For more information about the moles of the sample, refer to the link:
https://brainly.com/question/4816100
