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Chemistry

Calculate the mass of an atom of lead [Pb = 202].

Mole Concept

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Answer

As,

1 mole of Pb weighs 202 g and has 6.023 x 1023 atoms.

So, 6.023 x 1023 atoms of Pb has mass = 202 g

Therefore, 1 atom of Pb will have mass

=2026.023×1023=33.53×10−23g= \dfrac{202}{6.023 \times 10^{23}} = 33.53 \times 10^{-23} \text{g}

Hence, mass of an atom of lead is 33.53 x 10-23 g

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