Answer:
0.211 moles
Explanation:
From the Question;
- Molecules of H₂O = 1.27 × 10^23 molecules
We are required to calculate the number of moles
- we need to know that 1 mole of a compound contains a number of molecules equivalent to the Avogadro's constant, 6.022×10^23.
- Therefore, 1 mole of water, H₂O = 6.022×10^23 Molecules
- To get the number of moles we divide number of molecules by the Avogadro's number.
Number of moles of water = 1.27 × 10^23 molecules ÷ 6.022 × 10^23 molecules
= 0.211 Moles
Thus, the number of moles of water that are equal to 1.27 × 10^23 molecules is 0.211 moles.
