# Chapter 3 - Scientific Measurement - 3 Assessment - Page 98: 103

514.23 grams Pb.

#### Work Step by Step

Volume of iron = $\frac{Mass \,of\, iron}{Density\, of\, iron}=\frac{355 g}{7.87 g/cm^{3}}=45.108\,cm^{3}$ Volume of lead (Pb) is also same i.e $45.108\,cm^{3}$. So, mass of lead (Pb) $=Volume\times\,Density=45.108\,cm^{3}\times11.4\,g/cm^{3}=514.23 g.$

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