Question

6. Convert into mole.

(b) 20 g of water​

Answer 1

Explanation:

Given, Mass of water = 20 g

The Molecular mass of the water = 2 * Mass of Hydrogen + Mass of Oxygen

= 2 * 1 + 16

= 18 g.

Now, Number of moles :

Answer 2

$\bold{\huge{\underline{\underline{\rm\red{ANSWER: }}}}}$

$\sf Mole = \frac{Given \: Mass }{Molecular \: Mass}$

20 g of water = 20/molecular weight of water

Molecular weight of H2O = 2 × 1 + 16 = 18

$Moles = \frac{20}{18} = 1.11$

$\bold{\huge{\underline{\underline{\rm\red{THANKS</p><p> }}}}}$