 Custom Search Strong and Weak ElectrolytesThe Nature of Aqueous Solutions: Strong and Weak Electrolytes Definitions Solute-the substance being dissolved Solvent-the substance doing the dissolving (the larger amount) Solution- a homogeneous mixture of the solute and the solvent Solution= solvent + solute Aqueous (aq)= water solution Tincture= alcohol solution Amalgam= Mercury solution Electrolytes- A substance that when dissolved in water produces a solution that can conduct an electric current Strong and Weak Electrolytes
Strong Electrolytes conduct current very efficiently Completely ionized or dissociate when dissolved in water (single arrow) a. Soluble Ionic compounds b. Strong acids (HNO3( aq), H2SO4(aq), HCl(aq))HNO3--> H+ + NO3- (100% ionization) c. Strong bases (KOH and NaOH) KOH -->K + +OH - (100% dissociation) ***covalent substances ionize....ionic substances dissociate Weak electrolytes conduct only a small current Slightly ionized in solution (double arrow) a. Weak acids (organic acids-->acetic, citric, butyric,malic, etc.) HC2H3O2 <==> H+ + C2H3O2- b. Weak bases (ammonia) NH3 + H2O <==> NH4+ + OH- Nonelectrolytes conduct no current No ions present in solution a. alcohols, sugars |
