<h2>Example on Predicting Precipitation Reactions</h2>
<p id="fs-idm5664816">Predict the result of mixing reasonably concentrated solutions of the following <a data-lesson="ionic-solids" data-subject="chemistry" data-tutorial="liquids-and-solids" href="https://app.ulearngo.com/chemistry/liquids-and-solids/ionic-solids">ionic</a> compounds. If precipitation is expected, write a balanced net ionic equation for the reaction.</p>
<p id="fs-idp8541200">(a) potassium sulfate and <a data-lesson="using-barium-sulfate-for-medical-imaging" data-subject="chemistry" data-tutorial="equilibria-other-reaction-classes" href="https://app.ulearngo.com/chemistry/equilibria-other-reaction-classes/using-barium-sulfate-for-medical-imaging">barium</a> nitrate<br/>
 (b) lithium chloride and <a data-lesson="isolation-of-silver" data-subject="chemistry" data-tutorial="transition-metals" href="https://app.ulearngo.com/chemistry/transition-metals/isolation-of-silver">silver</a> acetate<br/>
 (c) lead nitrate and ammonium carbonate</p>
<h3>Solution</h3>
<p>(a) The two possible products for this combination are KNO<sub>3</sub> and BaSO<sub>4</sub>. The <a data-lesson="summarizing-solubility" data-subject="chemistry" data-tutorial="solutions-and-colloids" href="https://app.ulearngo.com/chemistry/solutions-and-colloids/summarizing-solubility">solubility</a> guidelines indicate BaSO<sub>4</sub> is insoluble, and so a precipitation reaction is expected. The net ionic equation for this reaction, derived in the manner detailed in the previous module, is</p>
<h4>\(\mathrm{Ba^{2+}}(aq) + \mathrm{SO_4^{2−}}(aq) \longrightarrow \mathrm{BaSO_4}(s)\)</h4>
<p>(b) The two possible products for this combination are LiC<sub>2</sub>H<sub>3</sub>O<sub>2</sub> and AgCl. The solubility guidelines indicate AgCl is insoluble, and so a precipitation reaction is expected. The net ionic equation for this reaction, derived in the manner detailed in the previous module, is</p>
<h4>\(\mathrm{Ag^{+}}(aq) + \mathrm{Cl^{−}}(aq) \longrightarrow \mathrm{AgCl}(s)\)</h4>
<p>(c) The two possible products for this combination are PbCO<sub>3</sub> and NH<sub>4</sub>NO<sub>3</sub>. The solubility guidelines indicate PbCO<sub>3</sub> is insoluble, and so a precipitation reaction is expected. The net ionic equation for this reaction, derived in the manner detailed in the previous module, is</p>
<h4>\(\mathrm{Pb^{2+}}(aq) + \mathrm{CO_3^{2−}}(aq) \longrightarrow \mathrm{PbCO_3}(s)\)</h4>

1da7dde6-444c-4cfc-9055-98f781c809ca

Predicting Precipitation Reactions

Chemistry generally explores the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances. 

Chemistry

Discover the fundamentals of chemical reactions, from balancing equations to reaction stoichiometry, and explore topics like acid-base and redox reactions in this tutorial, also uncover titration, gravimetric, and combustion analysis in quantitative chemical analysis.


Predicting Precipitation Reactions

Track Your Learning Progress

Earlier discussion