acid Base, and salt Salt Compound of metallic (or polyatomic) cations and nonmetallic anions Salts can be either soluble or insoluble in water ■eq.NaC|→Na++C|,NHNO2→NHA++NO2,AgC → insoluble,caCO3→ insoluble Are insoluble salts electrolytes 6
Acid, Base, and Sal t z Salt Compound of metallic (or polyatomic) cations and nonmetallic anions. Salts can be either soluble or insoluble in water. Salts can be either soluble or insoluble in water. e.g. NaCl Æ Na + + Cl-, NH 4NO 3 Æ NH 4 + + NO 3 -, AgCl Æ insoluble, CaCO 3 Æ insoluble Q: Are insoluble salts electrolytes? Are insoluble salts electrolytes? 6
Calculation in Solution Strong electrolyte Fully dissociated -all solute molecules are dissociated into cations and anions Q1: When dissolved 10 g nacl in 30 g water what is the molarity of each solute species? Q2: In the solution above add 10 g agno 3, what is the molarity of each solute species?(Ag* will react with CI- to form insoluble AgCl solid. 7
Calculation in Solution z Strong electrolyte Strong electrolyte Fully dissociated – all solute molecules are dissociated into cations and anions. Q1: When dissolved 10 g NaCl in 30 g water what When dissolved 10 g NaCl in 30 g water, what is the molarity of each solute species? Q2: In the solution above, add 10 g AgNO 3, what is the molarity of each solute species? (Ag is the molarity of each solute species? (Ag + will react will react with Cl- to form insoluble AgCl solid.) 7