Question

caluculate no. of atoms present in 11.5 litres of h2 at ntp

Answer 1

in 22.4 litre of hydrogen number of atoms is equal to 2 ×6.022×10²³
then 11.2 litres of hydrogen would have 6.022×10²³atoms of hydrogen

Answer 2

1 mole of H2 at NTP occupies 22.4 liters of volume and 2×6.022 +×10^23 atoms.
Thus at 11.2 lit of H2 at NTP
atoms =6.022×10^23