Answer:
14.9 moles of water
Step-by-step explanation:
Given data:
Number of molecules of water = 9.0×10²⁴ molecules
Number of moles of water = ?
Solution:
Avogadro number:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
1 mole = 6.022 × 10²³ molecules of water
9.0×10²⁴ molecules ×1 mol / 6.022 × 10²³ molecules
1.49×10¹ moles
14.9 moles