Question

convert 30g of water into mole

Answer 1

30 gw of water=30/18 mole
i.e. 1.67mole

Answer 2

Here we are asked to convert 30 g of water to moles.

So , Given mass = 30 g

We know that the chemical formula of water is H₂O.

∴ Molar mass of H₂O = 2 × 1 + 1 × 16
= 18 grams

So its easy to convert to moles as ,

No:of moles = Given mass / Molar mass
= 30 / 18
= 1.66666667 moles