Question

total number of hydrogen atoms in one litre of ammonia at stp

Answer 1

We know that one mole of any gas contains 22.4 litres at STP
so at stp 1 mole of  Ammonia occupies 22.4 liters
therefore let the number of present in 1 litre of ammonia at stp be x
there fore x moles of ammonia is present in 1 litre

by unitary method we get ,
x=1/22.4=0.0446
therefore o.o446 moles of ammonia contains 0.0446*6.023*10^22 molecules
there fore number of atoms of hydrogen in 0.0446 moles of ammonia are =0.0446*6.023*10^22*3
0.80588*10^22 atoms

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