Question

please tell ans.in this
FIND:MOLECULAR MASS.​

Answer 1

Answer:

Molecular mass of sub. =  mass of 1 mole of its molecules.

so here, mass of 1 molecule is  5.32 *10∧-23

and so, mass of 1 mole of molecule is  6.022* 10∧23 (Avogadro constant)

∴ moleculer mass of sub is equal to the mass of it 6.022* 10∧23 molecules 

 so,mass of 1 molecules of subtance                     = 5.32* 10∧-23

      mass for 6.022 *10∧23 molecules of subtance = ?

                                                                          =5.32* 10∧-23 ×6.022* 10∧23 

                                                                          = 32 g

and the 32g moleculer mass is for O2

so, the sub is O2

Answer 2

32g is the molecular mass of oxygen.