Calculate the number of atoms in 0.8g of copper (Cu = 64)
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Mole = Given mass / Atomic mass
= 0.8 / 64
= 1 / 80
Number of atom = Avogadro number * mole
= 6.022 * 10^23 * 1 / 80
= 0.75 * 10^22
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= 0.8 / 64
= 1 / 80
Number of atom = Avogadro number * mole
= 6.022 * 10^23 * 1 / 80
= 0.75 * 10^22
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