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chap3q21_24.tex
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chap3q21_24.tex
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\documentclass[fleqn]{exam}
\usepackage{chemfig}
\usepackage{siunitx}
\begin{document}
\begin{questions}
\setcounter{question}{20}
\question Determine the solubility of the COMPOUNDS IN WATER". following ionic compounds from the table "SOLUBILITY OF COMMON
\begin{parts}
\part \chemfig{AgCl}
\vspace{1in}
\part \chemfig{NaOH}
\vspace{1in}
\part \chemfig{FeS}
\vspace{1in}
\part \chemfig{FeSO_4}
\vspace{1in}
\part \chemfig{Al_2{(}CO_3{)}_3}
\vspace{1in}
\part \chemfig{Fe{(}NO_3{)}_3}
\vspace{1in}
\part \chemfig{Na_3PO_4}
\vspace{1in}
\part \chemfig{Cul}
\vspace{1in}
\part \chemfig{CuCl_2}
\vspace{1in}
\part \chemfig{PbBr_2}
\vspace{1in}
\end{parts}
\newpage
\question Determine whether 0.2 M solutions of the following mixtures form a precipitate when mixed, and give the formula of any precipitate formed.
\begin{parts}
\part \chemfig{AgNO_3} and \chemfig{NH_4Br}
\vspace{1.25in}
\part \chemfig{SrBr_2} and \chemfig{NaNO_3}
\vspace{1.25in}
\part \chemfig{KOH} and \chemfig{AlCl_3}
\vspace{1.25in}
\part \chemfig{Nal} and \chemfig{Pb{(}NO_3{)}_2}
\vspace{1.25in}
\part \chemfig{BaS} and \chemfig{Na_2SO_4}
\vspace{1.25in}
\part \chemfig{Cas} and \chemfig{NH_4Cl}
\vspace{1.25in}
\end{parts}
\question Look at the two "Facts" on the first page of this unit. Suggest answers to the questions asked.
\vspace{1.25in}
\question You wish to make some precipitates. You will make up 0.2 M solutions of certain soluble salts, mix the solutions and filter off the resulting precipitates. Give the complete chemical formulae for the soluble salts you would select to make up the necessary solutions for the following precipitates.
\begin{parts}
\part \chemfig{PbCl_2}
\vspace{1.25in}
\part \chemfig{AgBr}
\vspace{1.25in}
\part \chemfig{Cr_2S_3}
\vspace{1.25in}
\part \chemfig{SrSO_4}
\vspace{1.25in}
\end{parts}
\end{questions}
\end{document}