Question

Calculate the mass of 6.022×10²³ N molecules

Answer 1

hello uncle this is your answer

1 mole of atoms = 6.022× 10 ^23 atoms

6.022x10^23 atoms = 1 mole

1 atoms = 1/6.022×10^23 mole

3.011x10^23 atoms =

=3.011 ×10^23/6.022×10^23

=1/2 mole

1 mole of atom = atomic weight

1 mole of nitrogen.= 14 grams

1/2 mole of nitrogen = 1/2x 14 =7grams

mass of nitrogen is 7 gram

mark me

Answer 2

we know that ....

1 mole of atoms = 6.022× 10 ^23 atoms

so 

6.022x10^23 atoms = 1 mole                      

1 atoms = 1/6.022×10^23 mole

3.011x10^23 atoms =

=3.011 ×10^23/6.022×10^23

=1/2 mole

and we also know that ....

1 mole of atom = atomic weight

so.

1 mole of nitrogen.= 14 grams

1/2 mole of nitrogen = 1/2x 14 =7grams

so..mass of nitrogen atom = 7grams..ans