Aluminum sulfate, known as cake alum, has a remarkably wide range of uses, from dyeing leather and cloth to purifying sewage. In aqueous solution, it reacts with base to form a white precipitate. (a) Write balanced total and net ionic equations for its reaction with aqueous NaOH. (Type your answer using the format (NH4)2CO3 for (NH4)2CO3, [NH4]+ for NH4+, and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible coefficients. Type the cation before the anion.) overall equation (aq) + NaOH(aq) (aq) + (s) net ionic (aq) + (aq) (s) (b) What mass of precipitate forms when 104.5 mL of 0.616 M NaOH is added to 517 mL of a solution that contains 18.4 g aluminum sulfate per liter? g

Chemistry: The Molecular Science
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ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter3: Chemical Reactions
Section3.4: Acid-base Reactions
Problem 3.7E
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Aluminum sulfate, known as cake alum, has a remarkably wide range of uses, from dyeing leather and cloth to purifying sewage. In aqueous solution, it reacts with base to form a white precipitate.

(a) Write balanced total and net ionic equations for its reaction with aqueous NaOH. (Type your answer using the format (NH4)2CO3 for (NH4)2CO3, [NH4]+ for NH4+, and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible coefficients. Type the cation before the anion.)
overall equation
  (aq) +  NaOH(aq)    (aq) +   (s)
net ionic
  (aq) +   (aq)    (s)
(b) What mass of precipitate forms when 104.5 mL of 0.616 M NaOH is added to 517 mL of a solution that contains 18.4 g aluminum sulfate per liter?
  g
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