Question

how many molecules are present in 16 g of oxygen​

Answer 1

Answer:

number of mole *Nà

Explanation:

16/32=0.5 mol

0.5*6.022*10^23=3.011*10^23

May this will help you

Answer 2

Explanation:

16/32 given mass/molecular mass)

=0.5(nnumber of moles)

now multiplying number of moles of oxygen with Avogadro's number.(6.022×10^22)

0.5× 6.022×10^23

=3.011×10^23 molecules.

HERE IS YOUR ANSWER..