Hi There,

Here is your answer

Molarity of Water =

Density of water = 1 g mL-1 Mass of 1000 mL of water = Volume x Density 1000 x 1 = 1000 g.

Moles of water = 1000/18 = 55.55 Now 55.55 moles of H2O are present in 1000 ml or 1L of water.

Therefore Molarity = 55.55 M.

[ Since the specific density of water is 1, ‘molarity and molality of water’ are same ]

Hence, molarity and molality of water is 55.5 5

Hope this Information will help.

Thank you :)