Illustration 3. A solution of sodium carbonaté is čausticize of partly slaked commercial lime, The lime contains only calcium earbona an impurity. A small amount of free caustie soda is in the original solution mass obtained from the causticization has the following analysis: by the add CACO, Ca (OH): Na:CO NaOH 13.48% 0.28 0.61 ceam 10.36 75.27 Naz cOnt LaloH). 100.00%

Fundamentals Of Analytical Chemistry
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Author:Skoog
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Chapter10: Effect Of Electrolytes On Chemical Equilibria
Section: Chapter Questions
Problem 10.16QAP
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A solution of sodium carbonate is causticized by the addition
Illustration 3.
of partly slaked commercial lime, The lime contains only calcium earbonate
an impurity. A small amount of free caustic soda is in the original solutionT
mass obtained from the causticization has the following analysis:
13.48%
0.28
Ca (OH);
Na:CO
NaOH
cea
0.61
10.36
75.27
NazcOst caloH2
100.00%
9 NaUH + Cacuz
The following items are desired:
(a) The weight of lime charged per 100 lb of the causticized mass, and the compo-
sition oi the lime.
(b) The weight of the alkaline liquor charged per 100 lb of the causticized mass,
and the composition of the alkaline liquor.
(c) The reacting material that is present in excess and its percentage excess.
(d) The degree of completion of the reaction.
Transcribed Image Text:A solution of sodium carbonate is causticized by the addition Illustration 3. of partly slaked commercial lime, The lime contains only calcium earbonate an impurity. A small amount of free caustic soda is in the original solutionT mass obtained from the causticization has the following analysis: 13.48% 0.28 Ca (OH); Na:CO NaOH cea 0.61 10.36 75.27 NazcOst caloH2 100.00% 9 NaUH + Cacuz The following items are desired: (a) The weight of lime charged per 100 lb of the causticized mass, and the compo- sition oi the lime. (b) The weight of the alkaline liquor charged per 100 lb of the causticized mass, and the composition of the alkaline liquor. (c) The reacting material that is present in excess and its percentage excess. (d) The degree of completion of the reaction.
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