Question

calculate the no. of atoms and volume of 1g of H2

Answer 1

ANSWER

One gram of hydrogen contains 1 mole of hydrogen as its atomic weight is 1.

1 mole =6.023×10²³ atoms.

But, hydrogen is diatomic molecule.

So, its atom are found in pairs.

Amount of molecule =3.02×10²³

∴3.02×10²³ molecules are present in one gram of hydrogen.

(1 mole of H2 gas is 2 grams ).

So Volume of 1 gms of H2 gas at NTP =22.4/2=11.2 Litres.