Question

The mass of a lead ($Pb$) atom is _________

(Molecular Weight of $Pb$ = $207.2$ g/mole)

• A. $34.39\times {10}^{-19}$ g
• B. $67.04\times {10}^{-23}$ g
• C. $67.04\times {10}^{-19}$ g
• D. $34.39\times {10}^{-23}$ g

Answer 1

The correct option is D $34.39\times {10}^{-23}$ g

As we know, mass of one atom of lead is $207.2$ amu $=207.2\times 1.66\times {10}^{-24}=34.39\times {10}^{-23}g$