Respuesta :
541 grams is the mass of [tex]4.98\times 10^{24}[/tex] atoms of Zn.
Explanation:
Given
The number of zinc atoms =[tex]4.98\times 10^{24}[/tex]
To find:
The mass of given atoms of zinc atoms
Solution:
The number of zinc atoms =N=[tex]4.98\times 10^{24}[/tex]
According to mole concept:
1 mole = Avogadro 's Number = [tex]N_A= 6.022\times 10^{23} atoms/ molecules/ions[/tex]
Let the moles of zinc be = n
Number of atoms in n moles of zinc will be:
[tex]N=n \times N_A\\4.98\times 10^{24} atoms= n\times 6.022\times 10^{23} atoms\\n=\frac{4.98\times 10^{24} atoms}{ 6.022\times 10^{23} atoms}=8.27[/tex]
Moles of zinc = 8.27 mol
Molar mass of zinc = 65.38 g/mol
Mass of 8.27 moles of zinc:
[tex]=8.27\times 65.38 g/mol=540.67 g\approx 541 g[/tex]
541 grams is the mass of [tex]4.98\times 10^{24}[/tex] atoms of Zn.
Learn more about the mole concept here:
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