Each molecule of copper (II) sulfate pentahydrate (the blue form) contains 5 molecules of water.
zero.
NA, Avogadro's number, is the value of entities in one mole: 6.022*10+23
[998.2 gram / 18.0 g/mole] x 6.022 x 1023 = 334 molecules/Litre at 20oC
There is only one molecule of water in a water molecule.
about 8.275 multiply by exponent 24 ....