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In a routine Volhard analysis, a student dissolved a 1.2319-g sample of her unknown in 100 mL of distilled water and then added 100.00 mL of 0.1045 M AgNO3. The mixture was then "back titrated" with 0.1096 M KSCN and 28.65 mL was required to reach the end-point. Calculate the mass percentage of NaBr in the unknown.

In a routine Volhard analysis, a student dissolved a 1.2319-g sample of her unknown in 100 mL of distilled water and then added 100.00 mL of 0.1045 M AgNO3. The mixture was then "back titrated" with 0.1096 M KSCN and 28.65 mL was required to reach the end-point. Calculate the mass percentage of NaBr in the unknown.

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
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In a routine Volhard analysis, a student dissolved a 1.2319-g sample of her unknown in 100 mL of distilled water and then added 100.00 mL of 0.1045 M AgNO3. The mixture was then "back titrated" with 0.1096 M KSCN and 28.65 mL was required to reach the end-point. Calculate the mass percentage of NaBr in the unknown.
Transcribed Image Text:In a routine Volhard analysis, a student dissolved a 1.2319-g sample of her unknown in 100 mL of distilled water and then added 100.00 mL of 0.1045 M AgNO3. The mixture was then "back titrated" with 0.1096 M KSCN and 28.65 mL was required to reach the end-point. Calculate the mass percentage of NaBr in the unknown.
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