Question
Compare the solubility, in milligrams per milliliter, of silver iodide, $\mathrm{AgI}$, (a) in pure water and (b) in water that is $0.020 \mathrm{M}$ in $\mathrm{AgNO}_3$.
Step 1
Silver iodide is known to be poorly soluble in water. The solubility product constant ($K_{sp}$) for $\mathrm{AgI}$ at room temperature is approximately $8.5 \times 10^{-17}$. This value will help us determine the solubility in pure water. Show more…
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Estimate the solubility of silver iodide in pure water at $25^{\circ} \mathrm{C}(\mathrm{a})$ in moles per liter and (b) in grams per liter. $$\operatorname{AgI}(\mathrm{s}) \rightleftarrows \mathrm{Ag}^{+}(\mathrm{aq})+\mathrm{I}^{-}(\mathrm{aq})$$
Estimate the solubility of silver iodide in pure water at $25^{\circ} \mathrm{C}$ (a) in moles per liter and (b) in grams per liter. $$\operatorname{Agl}(\mathrm{s}) \rightleftharpoons \mathrm{Ag}^{+}(\mathrm{aq})+\mathrm{I}^{-}(\mathrm{aq})$$
Calculate the molar solubility of AgI in (a) pure water and (b) 0.0010 M NaI.
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