223 – Referring to the figure below, a solution with the characteristics of point A is prepared from four compounds. In each of the four separate containers, 100 g of water is prepared at $70^\circ$C and then the solution temperature is decreased to $20^\circ$C. In which container is the amount of precipitate formed the least, and what is the approximate weight of the precipitate formed in grams? [Figure: Solubility vs. temperature graph showing curves for various compounds, with point A marked]
Potassium chloride, 28
Sodium nitrate, zero
Potassium dichromate, 48
Lead(II) nitrate, 5
\textbf{223 –} Referring to the figure below, a solution with the characteristics of point A is prepared from four compounds. In each of the four separate containers, 100 g of water is prepared at $70^\circ$C and then the solution temperature is decreased to $20^\circ$C. In which container is the amount of precipitate formed the least, and what is the approximate weight of the precipitate formed in grams?
\textit{[Figure: Solubility vs. temperature graph showing curves for various compounds, with point A marked]}
\begin{enumerate}
\item Potassium chloride, 28
\item Sodium nitrate, zero
\item Potassium dichromate, 48
\item Lead(II) nitrate, 5
\end{enumerate}