Chapter 17, Problem 72E

Interpretation Introduction

To determine: The minimum number of grams of ${\text{I}}^{-}$ needed to precipitate ${\text{PbI}}_{\text{2}}$ by the addition of one drop $\left(0.2\text{mL}\right)$ of $0.10\text{M}$

$\text{Pb}{\left({\text{NO}}_3\right)}_{\text{2}}$ to $10\text{mL}$ of the sample.