Question

calculate number of moles of 6g of H and number of atoms present in it

Answer 1

Hey mate...

As you know

Moles = given mass / molar mass
= 6g / 1g
= 6 moles

Now for number of atoms

We know that one mole = 6.022×10^23 atoms

so 6 moles = 6×6.022×10^23 atoms
= 36.132 × 10^23 atoms


Hope you understand

Thanks

Answer 2

no . of moles = given mass / molar mass
= 6g / 1g
= 6 moles

no.of atoms=moles *avogadro no.
                   =6* 6.022* 10^23

and multiply