How many water molecules are in a 10.0g sample of water?
There are 6.022 x 10^23 molecules in 1 mole of molecules.
How many water molecules do you have in 10 g?
10/molar mass H2O = ?? moles H2O.
How many water molecules do you have in 10 g?
10/molar mass H2O = ?? moles H2O.