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A 0. 4054 g solid organic sample containing covalently bound bromide and no other halogens was placed in a porcelain crucible with about one gram of fresh sodium metal. In a process known as sodium fusion, the mixture was heated in a furnace to 450° C which charred and vaporized the organic portion of the molecule and converted the covalent bromide into sodium bromide. Excess sodium was decomposed by adding small portions of water which also dissolved the sodium bromide. The clear solution was quantitatively transferred to a beaker, acidified with dilute nitric acid, and diluted to about 50 mL. A 6 mL quantity of 0.1 M AgNO3 was added to the solution and the mixture heated to about 60° C for an hour to age and digest the precipitate. After filtering, the mass of the silver bromide produced was determined to be 37. 8 mg. What is the percentage by mass bromine in the organic compound?

A 0. 4054 g solid organic sample containing covalently bound bromide and no other halogens was placed in a porcelain crucible with about one gram of fresh sodium metal. In a process known as sodium fusion, the mixture was heated in a furnace to 450° C which charred and vaporized the organic portion of the molecule and converted the covalent bromide into sodium bromide. Excess sodium was decomposed by adding small portions of water which also dissolved the sodium bromide. The clear solution was quantitatively transferred to a beaker, acidified with dilute nitric acid, and diluted to about 50 mL. A 6 mL quantity of 0.1 M AgNO3 was added to the solution and the mixture heated to about 60° C for an hour to age and digest the precipitate. After filtering, the mass of the silver bromide produced was determined to be 37. 8 mg. What is the percentage by mass bromine in the organic compound?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A 0.4054 g solid organic sample containing covalently bound bromide and no other halogens was placed in a porcelain crucible with about one gram of fresh sodium metal. In a process known as sodium fusion, the mixture was heated in a furnace to 450° C which charred and vaporized the organic portion of the molecule and converted the covalent bromide into sodium bromide. Excess sodium was decomposed by adding small portions of water which also dissolved the sodium bromide. The clear solution was quantitatively transferred to a beaker, acidified with dilute nitric acid, and diluted to about 50 mL. A 6 mL quantity of 0.1 M AgNO3 was added to the solution and the mixture heated to about 60° C for an hour to age and digest the precipitate. After filtering, the mass of the silver bromide produced was determined to be 37. 8 mg. What is the percentage by mass bromine in the organic compound?
Transcribed Image Text:A 0.4054 g solid organic sample containing covalently bound bromide and no other halogens was placed in a porcelain crucible with about one gram of fresh sodium metal. In a process known as sodium fusion, the mixture was heated in a furnace to 450° C which charred and vaporized the organic portion of the molecule and converted the covalent bromide into sodium bromide. Excess sodium was decomposed by adding small portions of water which also dissolved the sodium bromide. The clear solution was quantitatively transferred to a beaker, acidified with dilute nitric acid, and diluted to about 50 mL. A 6 mL quantity of 0.1 M AgNO3 was added to the solution and the mixture heated to about 60° C for an hour to age and digest the precipitate. After filtering, the mass of the silver bromide produced was determined to be 37. 8 mg. What is the percentage by mass bromine in the organic compound?
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