Chapter 16 - Acid-Base Equilibria and Solubility Equilibria

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Hydrogen sulfide

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Hydrogen sulfide

________ is reacted with the unknown acidic solution after the chloride precipitates have been removed by filtration.

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Filtration

________ is used to remove these precipitates from the solution as well.

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stoichiometric coefficient

The product of the molar concentrations of the constituent ions, each raised to the power of their ________ in the equilibrium equation, is the solubility product of a compound.

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hydrogen ion

The ________ and hydroxide ion concentrations are very low in a strong- acid titration at the equivalence point (about 1 to 10- 7 M); therefore, the added value is one drop.

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weak acid or base

The ionization of a(n) ________ is suppressed by the presence of a common ion.

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equivalence point

As the ________ is located on the steep part of the curve, the pH on the ________ is inserted in the range that changes the color of the indicator.

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PH

________ has little effect on the solubilities of salts containing non- hydrolyzing anions.

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Al

________ (OH) 3 is increased solubility in a medium by the formation of a complex ion ________ (OH) 4 − Al (OH) 3 acting as Lewis acid and OH− acting as the Lewis base.

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constant Kf

The formation ________, which is the equilibrium constant for complex ion formation, is a measure of a metal ion's tendency to create a specific complex ion.

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buffer solution

A(n) ________ is made up of two components: (1) a weak acid or base and (2) its salt; both must be present.

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