How many moles are in 1kg ice/water?

[Bill Foster]

How many moles are in 1kg ice/water?

 

[Coastal]

This is a very simple molar mass problem.

First, convert kg to g.
Then, multiply the number of grams by the mol/molar mass ratio. Use the molar mass of H2O.

Since grams will be being multiplied by #mols/grams, the grams cancel, leaving the number of mols in 1 kg of water/ice.

 

[Nikhil_kumar]

Here is another simple explanation:

First convert the mass in kg to g ( 1kg=1000g). Now 18g of H20 is equivalent to 1 mole. Hence, 1000g of it would be equal to 1000/18 moles. This comes out be 55.55 moles. Thus 1 kg of water or ice has 55.55 moles of H20.