Question

calculate number of moles of hydrogen in 0.448 litre of hydrogen gas at STP

Answer 1

Hydrogen gas = H2

molecular mass = (1×2) = 2 g

No of moles in 10g of H2

= 10/2

= 5 moles

No. of molecules in 5 Moles of H2

= 5× 6.022×10^23

= 30.11 × 10^23 molecules

Answer 2

Answer:

22.4 liter of hydrogen gas contain moles of hydrogen =1 mole of H2

0.448 l of H2 =44.8÷22.4

=0.02 moles

Hope it helps u ☺☺☺