Respuesta :
Answer: 8 moles
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 Liters at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.
1 molecule of [tex]Pb(SO_4)_2[/tex] contains = 8 oxygen atoms.
Thus [tex]6.023\times 10^{23}[/tex] molecules of [tex]Pb(SO_4)_2[/tex] contains = [tex]\frac{8}{1}\times 6.023\times 10^{23}=48.2\times 10^{23}[/tex] atoms of Oxygen.
To calculate the moles, we use the equation:
[tex]\text{Number of moles}=\frac{\text{Given atoms}}{\text {Avogadro's number}}[/tex]
[tex]\text{Number of moles}=\frac{48.2\times 10^{23}}{6.023\times 10^{23}=8moles[/tex]
Thus 1 mole of [tex]Pb(SO_4)_2[/tex] contains 8 moles of oxygen atoms.
