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 10^23.
2. Calculation
* Half a mole of water contains half the number of molecules found in a full mole.
* So, the calculation is: (6.022 x 10^23 molecules/mole) / 2 = 3.011 x 10^23 molecules
Answer: There are approximately 3.011 x 10^23 molecules of water in half a mole.
