Respuesta :
1 mol Zn 65.41 g Zn
1.7 x10^23 atoms Zn x --------------- x ------------- = 18.47 g Zn
6.022 x 10^23 atoms 1 mol Zn
Answer : The mass of zinc is 18.3 grams.
Explanation :
First we have to calculate the moles of zinc.
As, [tex]6.022\times 10^{23}[/tex] number of zinc atoms present in 1 mole of zinc
So, [tex]1.7\times 10^{23}[/tex] number of zinc atoms present in [tex]\frac{1.7\times 10^{23}}{6.022\times 10^{23}}=0.28[/tex] mole of zinc
Now we have to calculate the mass of zinc.
Molar mass of zinc = 65.4 g/mole
[tex]\text{Mass of }Zn=\text{Moles of }Zn\times \text{Molar mass of }Zn[/tex]
[tex]\text{Mass of }Zn=0.28mole\times 65.4g/mole=18.3g[/tex]
Therefore, the mass of zinc is 18.3 grams.
