Respuesta :
Answer: 28.5 g
Explanation:
1 mole of every substance contains Avogadro's number of particles and weighs same as it's molecular weight.
Here 1 mole of [tex]CO_2[/tex] contains [tex]6.023\times 10^{23}[/tex] molecules of [tex]CO_2[/tex] and it weighs [tex]44g[/tex]
[tex]6.023\times 10^{23}[/tex] molecules weigh 44g
[tex]3.90\times 10^{23}[/tex] molecules weigh = [tex]\frac{44g}{6.023\times 10^{23}}\times 3.90\times 10^{23}[/tex]
= 28.5g
The mass of carbon dioxide is calculted below. Please see the image .