Question

How many molecules of water should be present in a drop of water with volume 0.05cc?

Answer 1

Explanation:

Thus, the number of moles in 0.05 mL water = 0.05/18 = 0.00278 moles. Now, 1 mole of anything contains 6.023 x 10 atoms, molecules, elementary units, whatever! So, 0.00278 moles of water will have 0.00278 * 6.023 * 10 molecules of water.