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General Chemistry

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Moderate

Ordering Molar Solubility from $K_{sp}$: Varying Numbers of Ions

CHEM-YPGJTO

Consider the following salts and corresponding solubility products, $K_{sp}$:

Salt $K_{sp}$
$\textrm{AgCl}$ $1.8\times10^{-10}$
$\textrm{CoCO}_3$ $ 1.4\times10^{-13}$
$\textrm{Zn(OH)}_2$ $1.2\times10^{-17}$
$\textrm{Ca}_3\textrm{(PO}_4\textrm{)}_2 $ $2.0\times10^{-29}$

$\ $
Order the salts by increasing molar solubility.

A

$\textrm{AgCl}<\textrm{CoCO}_3<\textrm{Zn(OH)}_2< \textrm{Ca}_3\textrm{(PO}_4\textrm{)}_2 $

B

$\textrm{AgCl}< \textrm{Zn(OH)}_2<\textrm{Ca}_3\textrm{(PO}_4\textrm{)}_2 <\textrm{CoCO}_3 $

C

$\textrm{Ca}_3\textrm{(PO}_4\textrm{)}_2 <\textrm{Zn(OH)}_2<\textrm{CoCO}_3 < \textrm{AgCl}$

D

$\textrm{CoCO}_3 < \textrm{Ca}_3\textrm{(PO}_4\textrm{)}_2 <\textrm{Zn(OH)}_2<\textrm{AgCl}$