UNIT IX PPT #2 Calculations Involving Solutions. IX.6 CALCULATING THE CONCENTRATIONS OF IONS IN SOLUTIONS REVIEW: M = [ ] = molarity = C = n = mol = molar.

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Presentation transcript:

UNIT IX PPT #2 Calculations Involving Solutions

IX.6 CALCULATING THE CONCENTRATIONS OF IONS IN SOLUTIONS REVIEW: M = [ ] = molarity = C = n = mol = molar concentration V L

IX.6 CALCULATING THE CONCENTRATIONS OF IONS IN SOLUTIONS Example #1: a. What is the molar concentration of the sodium ions in 0.25M NaOH (aq) ? b. What is the molar concentration of the chloride ions in 0.45 M AlCl 3(aq) ?

IX.6 CALCULATING THE CONCENTRATIONS OF IONS IN SOLUTIONS Example #2 What is the chloride ion concentration when 20.0 g of BaCl 2 (s) is dissolved and diluted to 800.mL?

IX.6 CALCULATING THE CONCENTRATIONS OF IONS IN SOLUTIONS REVIEW: C 1 V 1 = C 2 V 2 C dil x V dil = C conc x V conc

IX.6 CALCULATING THE CONCENTRATIONS OF IONS IN SOLUTIONS Example #3 A solution is made by mixing mL of M BaSO 4 and 80.0 mL of M MgF 2. What is the concentration of each ionic species in the final solution?

IX.6 CALCULATING THE CONCENTRATIONS OF IONS IN SOLUTIONS Example #4 A solution is made by mixing 50.0 mL of M BaCl 2 and mL of M NaCl. What is the concentration of each ionic species in the final solution? Hebden p. 212 # 30-38