# Problem: Aluminum sulfate, known as cake alum, has a wide range of uses, from dyeing leather and cloth to purifying sewage. In aqueous solution, it reacts with base to form a white precipitate.Write balanced total and net ionic equations for its reaction with aqueous NaOH.

###### FREE Expert Solution

For this problem, we are being asked to write the balanced total and net ionic equations  of the reaction between NaOH and aluminum sulfate

Aluminum sulfate  Al3+ + SO43- AlSO4

Double displacement reaction the positive ions (cations) and the negative ions (anions) of the two reactants will swap or switch places

The initial aqueous reaction will appear as:

Al2(SO4)3 (aq) + NaOH (aq)  Al(OH)3 + Na2SO

Recall the Solubility Rules:

Soluble Ionic Compounds:

Group 1A ions (Li+, Na+, K+, etc.) and Ammonium ion (NH4+) are soluble
Nitrates (NO3-), Acetates (CH3COO- or C2H3O2-), and most Perchlorates (ClO4-) are soluble
Cl-, Br-, and I- are soluble except when paired with Ag+, Pb2+, Cu+, Hg22+
Sulfates (SO42-) are soluble except those of Ca2+, Sr2+, Ba2+, Ag+, and Pb2+

Insoluble Ionic Compounds:

Hydroxides (OH-) and Sulfides (S2-) are insoluble except when with Group 1A ions (Li+, Na+, K+, etc.) and ammonium ion (NH4+) and Ca2+, Sr2+, Ba2+
Carbonates (CO32-) and Phosphates (PO43-) are insoluble except when with Group 1A ions (Li+, Na+, K+, etc.) and ammonium ion (NH4+)

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###### Problem Details

Aluminum sulfate, known as cake alum, has a wide range of uses, from dyeing leather and cloth to purifying sewage. In aqueous solution, it reacts with base to form a white precipitate.

Write balanced total and net ionic equations for its reaction with aqueous NaOH.