Question 16.9: Using the data in Table 16.2, calculate the solubility of co...
Using the data in Table 16.2, calculate the solubility of copper(II) hydroxide, Cu(OH)_{2}, in g/L.
Strategy We are given the K_{sp} of Cu(OH)_{2} and asked to calculate its solubility in g/L. The sequence of conversion steps, according to Figure 16.9(b), is
\begin{matrix} K_{sp} \text{ of} && [Ca^{2+} ] and & & \text{molar solubility} && \text{solubility of} \\ &\longrightarrow & & \longrightarrow &&\longrightarrow \\ Cu(OH)_{2} &&[OH^{-} ] & &of Cu(OH)_{2}&&Cu(OH)_{2} in g/L \end{matrix}
Table 16.2 Solubility Products of Some Slightly Soluble Ionic Compounds at 25°C
Compound | K_{sp} | Compound | K_{sp} |
Aluminum hydroxide [Al(OH)_{3} ] | 1.8\times 10^{-33} | Lead (II) chromate (PbCrO_{4}) | 2.0\times 10^{-14} |
Barium carbonate (BaCO_{3}) | 8.1\times 10^{-9} | Lead (II) fluoride (PbF_{2}) | 4.1\times 10^{-8} |
Barium fluoride (BaF_{2}) | 1.7\times 10^{-6} | Lead (II) iodide (PbI_{2}) | 1.4\times 10^{-8} |
Barium sulfate (BaSO_{4}) | 1.1\times 10^{-10} | Lead (II) sulfide (PbS) | 3.4\times 10^{-28} |
Bismuth sulfide (BaSO_{3}) | 1.6\times 10^{-72} | Magnesium carbonate (MgCOI_{3}) | 4.0\times 10^{-5} |
Calcium sulfide (CdS) | 8.0\times 10^{-28} | Magnesium hydroxide [Mg(OH)_{2}] | 1.2\times 10^{-11} |
Calcium carbonate (CaCO_{3}) | 8.7\times 10^{-9} | Manganese (II) sulfide (MnS) | 3.0\times 10^{-14} |
Calcium fluoride (CaF_{2}) | 4.0\times 10^{-11} | Mercury (I) sulfide (HgS) | 3.5\times 10^{-18} |
Calcium hydroxide [Ca(OH)_{2}] | 8.0\times 10^{-6} | Nickel (II) sulfide (NiS) | 4.0\times 10^{-54} |
Calcium phosphate [Ca_{3}(PO_{4} )_{2}] | 1.2\times 10^{-26} | Silver bromide (AgBr) | 1.4\times 10^{-24} |
Chromium (II) sulfide (CoS) | 3.0\times 10^{-29} | Silver chloride (Ag_{2}CO_{3}) | 7.7\times 10^{-13} |
Copper (I) bromide (CuBr) | 4.0\times 10^{-21} | Silver chloride (AgCl) | 8.1\times 10^{-12} |
Copper (I) iodide (CuI) | 4.2\times 10^{-8} | Silver iodide (AgI) | 1.6\times 10^{-10} |
Copper (II) hydroxide [Cu(OH)_{2}] | 5.1\times 10^{-12} | Silver sulfate (Ag_{2}SO_{4}) | 8.3\times 10^{-17} |
Copper (II) sulfide (CuS) | 2.2\times 10^{-20} | Silver sulfide (Ag_{2}S) | 1.4\times 10^{-5} |
Iron (II) hydroxide [Fe(OH)_{2}] | 6.0\times 10^{-37} | Strontium carbonate (SrCO_{3}) | 6.0\times 10^{-51} |
Iron (III) hydroxide [Fe(OH)_{3}] | 1.6\times 10^{-14} | Strontium sulfate (SrSO_{4}) | 3.8\times 10^{-7} |
Iron (II) sulfide (FeS) | 1.1\times 10^{-36} | Tin (II) sulfide (SnS) | 1.0\times 10^{-26} |
Lead (II) carbonate (PbCl_{2}) | 3.3\times 10^{-14} | Zinc hydroxide [Zn(OH)_{2}] | 1.8\times 10^{-14} |
2.4\times 10^{-4} | Zinc sulfide (ZnS) | 3.0\times 10^{-23} |
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