calculate the number of cu.atoms in 0. 635g of
Copper
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n=0.635/63.5
(n=given mass / molar mass)
n=0.01
But
n=N/NA
(n= number of particles / Avogadro number)
Therefore
N/NA=0.01
NA=6.022*10^23
N= 6.022*10^21
(n=given mass / molar mass)
n=0.01
But
n=N/NA
(n= number of particles / Avogadro number)
Therefore
N/NA=0.01
NA=6.022*10^23
N= 6.022*10^21
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