Lecture_Notes_093009b

Lecture_Notes_093009b - y Solubility Product – the...

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Buffering Capacity
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Which of the following solutions will have the greatest buffering capacity? 100 m L of 0. 8 0 M HN. . 100 mL of 0.30 M H. .. 1 o f .1 M H. 05 M H. 78% 9% 5% 8% 1. 100 mL of 0.80 M HNO 2 /0.80 M NaNO 2 2. 100 mL of 0.30 M HNO 2 /0.30 M NaNO 2 3. 100 mL of 0.10 M HNO 2 /0.10 M NaNO 2 4. 100 mL of 0.05 M HNO 2 /0.05 M NaNO 2
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Preparing a Buffer y In what volume ratio should you mix 1.0 M solutions of NH 4 Cl and NH 3 to produce a buffer solution having a pH 9.80. (NH 3 K b = 1.8 x 10 -5 )
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Preparing a Buffer y Using the following table determine the best acid and its conjugate base that would best form a buffer with a pH of 2.9.
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Solubility Rules
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Solubility Rules
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Solubility Rules
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Solubility Rules y Predict the products of the following reactions: { FeSO 4 (aq) + KCl (aq) { Al(NO 3 ) 3 (aq) + Ba(OH) 2 (aq)
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Solubility Equilibria y Solubility – the amount of solid that can be dissolved in a particular solution, an equilibrium position
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Unformatted text preview: y Solubility Product – the equilibrium constant for the dissolution of a particular solid in water at a particular temperature Solubility Equilibria y For each of the following compounds, write the equation for the dissociation of the ions in water and the expression for K sp . { Ag 2 CO 3 (s) { Hg 2 Cl 2 (s) Solubility Equilibria y A particular saturated solution of PbI 2 has[Pb 2+ ] = 5.0 x 10-3 M and [I-] = 1.3 x 10-3 M. { What is the value of K sp for PbI 2 ? { What is [I-] in a saturated solution that has [Pb 2+ ] = 2.5 x 10-4 M? { What is [Pb 2+ ] in a saturated solution that has [I-] = 2.5 x 10-4 M? Solubility Equilibria y What is the solubility of Ag 2 CO 3 in 1.0 L of water? K sp = 8.1 x 10-12...
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This note was uploaded on 10/14/2009 for the course CHEM 105BLG at USC.

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Lecture_Notes_093009b - y Solubility Product – the...

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