How many moles of h2o are there in 1.0 g of h2o?

To calculate this, we need the molar mass of water which is obtaine by adding the molar masses of the elements. For H2O, the molar mass is 18.02g/mol. Then, from the amount given which is 1 gram of H2O we divide the molar mass which yields to 0.06 mol of water.

it's