# of   weigh  and  of  weigh  The molar mass of  and molar mass of  in  are : Option 1)Option 2)Option 3)  Option 4)

Molar Mass -

The mass of one mole of a substance in grams is called its molar mass.

- wherein

Molar mass of water = 18 g mol-1

Mole Concept -

One mole is the amount of a substance that contains as many particles or entities as there are atoms in exactly 12 g (or 0.012 kg) of the 12C isotope.

- wherein

one mole = 6.0221367 X 1023

Let atomic mass of   & atomic mass of

:

Solving equations (I) & (II), simultaneously, we get:

&

Thus,

Option 1)

Option 2)

Option 3)

Option 4)

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