Chapter+4-template-2[1]

Chapter+4-template-2[1] - Type of compound Soluble ionic...

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Type of compound Ions? Electrical conductivity Type of electrolyte Soluble ionic compounds Strong acid/base Weak acid/base Molecular compound
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1. Precipitation reaction Precipitation reaction occur both in nature and commerce: - Corral reefs and gems/minerals form, in part, though precipitation - Chemical industries use this process to make several inorganic compounds)
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The key event : formation of a solid from dissolved ions - In a precipitation reaction , 2 soluble ionic compounds react to form an insoluble product, a precipitate through the net removal of ions in the solution - Characterized by 2 ionic solution (homogeneous) combining to form a heterogeneous mixture (solid and liquid phases)
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Example : reaction between AgNO3 (aq) and NaCl (aq) Molecular equation: Complete ionic equation: Spectator ions: Net ionic equation:
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Example : reaction between KNO3 (aq) and CaCl2 (aq) Molecular equation: Complete ionic equation: Spectator ions: Net ionic equation:
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How can you tell if a precipitate will form? Solubility rules (table 4.1) 1. Group 1 and NH4+ : All group 1 (Li+, Na+, K+,…) and ammonium ions (NH4+) are soluble 2. NO3-, CH3CO2-, ClO3-, ClO4- : All nitrate, acetate, chlorate and perchlorate are soluble 3. SO42-: All sulfate are soluble except those of Ca2+, Sr2+, Ba2+, Ag+, and Pb2+ (Ag2SO4 slightly
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4. Halides:
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This note was uploaded on 11/20/2011 for the course CHEM 1035 taught by Professor Jgdillard during the Fall '07 term at Virginia Tech.

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Chapter+4-template-2[1] - Type of compound Soluble ionic...

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