chapter 5 - Intro to RXNs in Aq solutions

chapter 5 - Intro to RXNs in Aq solutions - Nonelectrolyte...

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Nonelectrolyte – a substance that does not have ions present in it, or has very low concentrations of electrons and therefore does not conduct electricity Electrolyte – a substance that is fully ionized in aqueous solution and is a strong electrical conductor Weak Electrolyte – A substance that is partially ionized in aqueous solution and the solution is a weak conductor of electricity Rules of Electrolytes: - Most soluble ionic compounds and only a few molecular compounds are strong electrolytes - Most molecular compounds are nonelectrolytes or weak electrolytes Precipitate – Occurs when specific cations and anions combine and produce an insoluble ionic solid Net Ionic Equation – an equation that only includes the actual participants in the reaction AgNO3(aq) + NaI(aq) ----> AgI(s) + NaNO3(aq) becomes: Ag+(aq) + I-(aq) ---> AgI(s) Table 1.5 Solubility Guidelines for Common Ionic Solids Follow the lower-numbered guidelines when two guidelines are in conflict. This leads to the correct prediction in most cases. 1. Salts of group 1 cations (with some exceptions for Li+) and the NH4+ cations are
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chapter 5 - Intro to RXNs in Aq solutions - Nonelectrolyte...

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