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UNIT IX PPT #2 Calculations Involving Solutions

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

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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) ?

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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?

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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

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IX.6 CALCULATING THE CONCENTRATIONS OF IONS IN SOLUTIONS Example #3 A solution is made by mixing 100.0 mL of 0.250 M BaSO 4 and 80.0 mL of 0.500 M MgF 2. What is the concentration of each ionic species in the final solution?

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IX.6 CALCULATING THE CONCENTRATIONS OF IONS IN SOLUTIONS Example #4 A solution is made by mixing 50.0 mL of 0.300 M BaCl 2 and 100.0 mL of 0.500 M NaCl. What is the concentration of each ionic species in the final solution? Hebden p. 212 # 30-38

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16-2. Dilution Calculations and Molar Solubility A. MOLAR SOLUBILITY : Think of molar solubility as the molarity of a saturated solution!! Moles per Litre.

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