Chapter 4 - Reactions in Aqueous Solution

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Concentrations of Reactants in Solution: MolarityMolarity =moles solutevolume of soln in litersExpressing the Concentration of an electrolyteThe concentration of an electrolyte in solution can be specified either in terms of the compoundused to make the solution or in terms of the ions that that the solution contains.Ex: 1.0 M Na 2 SO 4 or 2.0 M Na + or 1.0 M SO 4 2– .Interconverting Molarity, Moles, and VolumeUse dimensional analysismoles = liters × molaritymoles = liters × moleslitersHow many moles of solute are present in the following solution?35.00 mL of 1.200 M HNO 3How many mL of a 0.45 M BaCl 2 solution will contain 15.0 g of BaCl 2 ?Ch 4 Reactions in Aqueous Solution - 14 -
Diluting Concentrated SolutionsDilutionSolutions of lower concentration can be obtained by adding water to concentrated solutions, aprocess called dilution.Moles of solute before dilution = moles of solute after dilution.Moles = molarity × volumeM i× V i= M f× V fV i= M f× V fM iA bottle of 12.0 M hydrochloric acid has only 35.7 mL left in it. What will the HCl concentrationbe if the solution is diluted to 250.0 mL?What is the volume of solution that would result by diluting 70.00 mL of 0.0913 M NaOH to aconcentration of 0.0150 M?Ch 4 Reactions in Aqueous Solution - 15 -
Page 1 and 2: Chapter 4 - Reactions in Aqueous So
Page 4 and 5: Solubility Guidelines for Ionic Com
Page 6 and 7: Triprotic acids - yield three H+ io
Page 8 and 9: Pay attention to stoichiometryHCl(a
Page 10 and 11: • The oxidation number of fluorin
Page 12 and 13: The Activity SeriesAny metal on the
Page 16 and 17: Solution Stoichiometryfor the balan
Page 18: Redox TitrationsIodine, I 2 , react

Chapter 4 - Reactions in Aqueous Solution

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