________ is reacted with the unknown acidic solution after the chloride precipitates have been removed by filtration.
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2
sodium hydroxide
Adding ________ to a sample can reveal the presence of NH4 +.
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3
Filtration
________ is used to remove these precipitates from the solution as well.
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4
BaCO3
Cations in Group 4 Following the removal of all group 1, 2, and 3 cations from the solution, sodium carbonate is added to the basic solution to precipitate Ba2+, Ca2+, and Sr2+ ions as ________, CaCO3, and SrCO3.
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5
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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chemical analysis
It is occasionally advantageous in ________ to precipitate one type of ion from solution while leaving other ions in solution.
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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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AgCl
Thus a decrease in salt solubility (________) in solution is the effect of adding 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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14
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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Flashcard (48)