Question

calculate the number of molecules in 0.22 gm Co2​

Answer 1

Answer:

Molecular mass of co2=44gm

no. of moles(n) =given mass/molecular mass

n=22/44=1/2

1 mole contains 6.022×10^23 molecules

1/2 moles contains (6.022×10^23)/2molecules

=3.011×10^23molecules