Question

how many molecules of H2O and O2 are present in 8.5 gram of H2 O2​

Answer 1

Answer:

2H2O+O2--->2H2O2

8.5 gm H2O2=0.25 mole

hence H2O is also 0.25 mole i.e.4.5 gm

O2is 0.125 mole i.e.4 gm