1. Solve the following queries (parts a), b), & c)) dealing with volumetric analysis. Make sure you show complete procedures a) Ammonia reacts with hypobromite, OBr, by the reaction: 2NH3 + 30Br→ N₂ + 3Br + 3H₂O What is the molarity of a hypobromite solution if 1.00 mL of the OBr - solution reacts with 1.69 mg of NH3? b) A 0.8040-g sample of an iron ore is dissolved in acid. The iron is then reduced to Fe2+ and titrated with 47.22 mL of 0.02242 M KMnO4 solution. Calculate the results of this analysis in terms of (a) % Fe and (b) % Fe3O4. The reaction is the following one: MnO4 +5Fe²+ + 8H+ → Mn²+ +5Fe³+ + 4H₂O c) A solution of HCIO4 was standardized by dissolving 0.4008 g of primary-standard- grade HgO in a solution of KBr: HgO(s) + 4Br + H₂O → HgBr?¯ + 2OH- The liberated OH consumed 43.75 mL of the acid. Calculate the molar concentration of the HCIO4.

1. Solve the following queries (parts a), b), & c)) dealing with volumetric analysis. Make sure you show complete procedures a) Ammonia reacts with hypobromite, OBr, by the reaction: 2NH3 + 30Br→ N₂ + 3Br + 3H₂O What is the molarity of a hypobromite solution if 1.00 mL of the OBr - solution reacts with 1.69 mg of NH3? b) A 0.8040-g sample of an iron ore is dissolved in acid. The iron is then reduced to Fe2+ and titrated with 47.22 mL of 0.02242 M KMnO4 solution. Calculate the results of this analysis in terms of (a) % Fe and (b) % Fe3O4. The reaction is the following one: MnO4 +5Fe²+ + 8H+ → Mn²+ +5Fe³+ + 4H₂O c) A solution of HCIO4 was standardized by dissolving 0.4008 g of primary-standard- grade HgO in a solution of KBr: HgO(s) + 4Br + H₂O → HgBr?¯ + 2OH- The liberated OH consumed 43.75 mL of the acid. Calculate the molar concentration of the HCIO4.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter14: Chemical Equilibrium

Section: Chapter Questions

Problem 14.74QE: Lead poisoning has been a hazard for centuries. Some scholars believe that the decline of the Roman...

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Lead poisoning has been a hazard for centuries. Some scholars believe that the decline of the Roman Empire can be traced, in part, to high levels of lead in water from containers and pipes, and from wine that was stored in leadglazed containers. If we presume that the typical Roman water supply was saturated with lead carbonate, PbCO3 (Ksp = 7.4 1014), how much lead will a Roman ingest in a year if he or she drinks 1 L/day from the container?
please help me The aluminum in a 1.200g sample of impure ammonium aluminum sulfate was precipitatedwith aqueous ammonia as the hydrous Al2O3 · XH2O. The precipitate was filtered and ignitedat 100°C to give anhydrous Al2O3, which weighed 0.2001 g. Express the result of this analysisin terms of % Al.
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Choi is fond of carbonated beverages so he crafted his own soda formulation called “Sodalicious.” Ulan, who is a fellow enthusiast, also made her own formulation which she called “Soda Pop!” to challenge his friend Choi. To know which formulation is better, they sought to determine the carbonic acid content of their soda formulations using titration. In the first part of their experiment, a 0.5 Mlabeled NaOH solution was standardized against 0.350 grams of KHP (MW = 204.22 g/mol) primary standard that is 99.6% pure. The titration required 3.16 mL of the NaOH solution to reach the phenolphthalein endpoint. In the second part of their experiment, Choi and Ulan independently prepared their samples by taking 25.0-mL of their soda sample and diluting it to 30.0 mL. Using the same titrant and indicator, Choi’s “Sodalicious” required 1.39 mL of the standardized titrant to reach the endpoint, while Ulan’s “Soda Pop!” required 0.926 mL of the same titrant to reach the endpoint. A. What is the…
Choi is fond of carbonated beverages so he crafted his own soda formulation called “Sodalicious.” Ulan, who is a fellow enthusiast, also made her own formulation which she called “Soda Pop!” to challenge his friend Choi. To know which formulation is better, they sought to determine the carbonic acid content of their soda formulations using titration. In the first part of their experiment, a 0.5 Mlabeled NaOH solution was standardized against 0.350 grams of KHP (MW = 204.22 g/mol) primary standard that is 99.6% pure. The titration required 3.16 mL of the NaOH solution to reach the phenolphthalein endpoint. In the second part of their experiment, Choi and Ulan independently prepared their samples by taking 25.0-mL of their soda sample and diluting it to 30.0 mL. Using the same titrant and indicator, Choi’s “Sodalicious” required 1.39 mL of the standardized titrant to reach the endpoint, while Ulan’s “Soda Pop!” required 0.926 mL of the same titrant to reach the endpoint. D. Calculate…
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