F05L21_6 - VII. Titrations Use a standard solution (known...

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1 VII. Titrations – Use a standard solution (known concentration) which reacts with known stoichiometry with solution of unknown concentration to determine concentration of unknown solution. A. Commonly acid-base titrations HCl (aq) + KOH (aq) KCl (aq) + H 2 O (l) Pr. Ex. 4.17, BLB p154 What is the molarity of an NaOH solution if 48.0 mL is needed to neutralize 35.0 mL of 0.144 M H 2 SO 4 ? B. Procedure for titration - I B. Procedure for titration - II B. Procedure for titration - III The exact volume where a stoichiometric amount of one substance has been added to another is called the equivalence point. C. Redox titration involves oxidation and reduction Pr. Ex. 4.16, BLB p154 A sample of an iron ore is dissolved in acid, and the iron is converted to Fe 2+ . The sample is then titrated with 47.20 mL of 0.02240 M MnO 4- solution. The oxidation-reduction reaction during titration is as follows: MnO 4 - (aq) + 5 Fe 2+ (aq) + 8 H + (aq) Mn 2+ (aq) + 5 Fe 3+ (aq) + 4 H 2 O(l) a) How many moles of MnO 4 - were added to the solution?
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F05L21_6 - VII. Titrations Use a standard solution (known...

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