Respuesta :
Number of moles is defined as the ratio of given mass in g to the molar mass.
The mathematical expression is given as:
Number of moles =[tex]\frac{given mass in g}{molar mass}[/tex]
Number of moles of compound = 12.7 moles (given)
As, 1 mole of any compound is equal to [tex]6.022\times 10^{23}[/tex] particles.
where, [tex]6.022\times 10^{23}[/tex] is Avogadro number.
Formula for calculating particles is given by:
[tex]N= n\times N_{A}[/tex]
where, N = number of particles, n = number of moles and [tex]N_{A}[/tex] is Avogadro number.
Put the values,
[tex]N= 12.7 moles\times 6.022\times 10^{23}[/tex]
= [tex]76.4794\times10^{23}[/tex] or [tex]7.64794\times10^{24}[/tex]
[tex]\simeq 7.65\times10^{24} [/tex]
Hence, number of particles of the compound is equal to [tex]7.65\times10^{24}[/tex]
