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Chapter 10 Acids and Bases. 10.6 Acid – Base Properties of Salt Solutions. Salts that Form Neutral Solutions. A salt solution containing the anion of a strong acid and the cation of a strong base does not produce or attract H + from water is a neutral solution
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Chapter 10 Acids and Bases 10.6Acid–Base Propertiesof Salt Solutions
Salts that Form Neutral Solutions A salt solution containing the anion of a strong acid and the cation of a strong base • does not produce or attract H+ from water • is a neutral solution • of KNO3, for example, is neutral because it contains a cation from a strong base (KOH) and an anion from a strong acid (HNO3)
Salts that Form Basic Solutions A salt solution containing the anion of a weak acid and the cation of a strong base • is a basic solution • has an anion of the weak acid that attracts H+ from water • of, KHCO3, for example, is basic because its anion from a weak acid (H2CO3) attracts H+ from water and produces OH HCO3(aq) + H2O(l) H2CO3(aq)+ OH(aq) anion of forms solution is weak acid weak acid basic
Salts that Form Acidic Solutions A salt solution containing the anion of a strong acid and the cation of a weak base • is an acidic solution • has a cation of the weak base that produces H+ in water • of NH4Cl, for example, is acidic because its cation from a weak base (NH4OH) releases H+ to form H3O+ NH4+(aq) + H2O(l) NH3(aq)+ H3O+(aq) cation of forms solution is weak base weak base acidic
Learning Check Predict whether a solution of each of the following salts will be 1) acidic, 2) basic, or 3) neutral. A. Li2S(aq) B. Mg(NO3)2(aq) C. NH4Cl(aq)
Solution Predict whether a solution of each of the following salts will be 1) acidic, 2) basic, or 3) neutral. A. Li2S(aq) 2) basic; S2forms OH S2(aq) + H2O(l) HS(aq) + OH(aq) B. Mg(NO3)2(aq)3) neutral C. NH4Cl(aq) 1)acidic; NH4+ produces H3O+ NH4+(aq) + H2O(l) NH3(aq) + H3O+(aq)