1. Avogadro's Number
* Avogadro's number tells us the number of particles (atoms, molecules, etc.) in one mole of a substance. It's approximately 6.022 x 10²³ particles per mole.
2. Calculation
* Half a mole of water (H₂O) contains: (1/2 mole) * (6.022 x 10²³ molecules/mole) = 3.011 x 10²³ molecules of water
Therefore, there are approximately 3.011 x 10²³ molecules of water in half a mole of water.
