How many molecules of water in one cubic centimeter?

There are approximately 3.34 x 10^19 molecules of water in one cubic centimeter. This is derived from the fact that one cubic centimeter of water has a mass of about one gram, and since one mole of water (approximately 18 grams) contains Avogadro's number of molecules (about 6.022 x 10^23), you can calculate the number of molecules in one cubic centimeter based on these values.